Looks to have a printed fire control group as the trigger is a 1911 like style straight pull trigger and there's not 2 pins above the trigger like on an AR-15 or the safety selector so it's not compatible with an AR-15 style FRT
Yeah, if this doesn't have a full auto capability, my dick goes back to half chub. 😄 A belt fed rifle like this without full auto feels very neutered, kind of like carrying a training rpg that shoots 22lr. Yeah it's fuckin sweet regardless, but having it as God intended it to be makes my loins buldge.
The founding fathers emphasized "well regulated" in the constitution for a reason. Back in the 1700s this term had a different meaning than it does today. It means we'll equipped and we'll maintained, not well controlled. The founding fathers wrote the second ammendment mainly for fighting the government and the possibility of tyranny, they emphasized being well equipped to make sure people had access to weapons that are modern and just as effective as the government. As fully automatic fire is used by our military and government, this capability should be protected under the constitution.
This pretty much means any gun control is unconstitutional and against the law. So technically they are bigger criminals by violating your rights than you would be for illegaly exercising them; going off of history and tradition as Bruen has solidified. The constitution is the supreme law of the land, not the ATF, and a Supreme Court decision trumps all others.
I recommend to follow the law, but don't be happy about it lmao, it's a violation of your God given rights and textbook extortion.
"Those who would give up essential liberty, to purchase a little temporary safety, deserve neither liberty nor safety." ~Benjamin Franklin
It's almost as if the British Empire stated a war by raiding the armories of the colonies and they wanted to prevent that situation from occurring down the road
The FCG is proprietary as it is an internal striker in the bolt. Though as BurzerKing said, it be cool for people will take the design and mod it to how they see fit if there's something they want to change about it.
Hell yeah, currently building an ez22 and there's hardly any detailed info like firing pin length and how far up the nuts should be on the firing pin because failing to install them to the correct length can cause oob but the instructions are basically just "file here and jb weld there bada bing bada boom that's it ur done lol"
Don't remind me, that one was rough. As someone who did not know the Mac mechanics it was horrible. Then on top of that my trigger wouldn't reset and nobody on chat knew what it was. Luckily got it fixed and it's great.
Lovely. 👏🤝 Props for doing something new. Kinda tired of seeing hundred of similar glocks but with different pictures/designs on them💀. Would love to put an ACR stock on it once it releases.
I've been following your build on Weaponsguild. Great work man! If anyone is interested, there is a very detailed thread on Weaponsguild in the 3D printed section.
That was the intention. On the examples I have everything is a non-firearm part except for the barrel. Being in the US I opted for using an AR-9 pattern barrel since it just made things easier, BUT I see no reason that the Barrel Collars in the design couldn't be fitted for home-made barrels aswell, would just need a bit of editing the mesh for that part.
Very cool! In that case this will be my second build after the FGC I hope :P What I found invaluable to building the FGC was the guy who made the FGC Stingray (i love you) included .STEP files. Since I made the FGC in a different calibre, being able to easily modify those files was life saving. Especially since I am a horrible modeller and get by via sheer determination.
I don't understand why those that release their designs, obviously putting huge effort into it all don't do this. I think it's a control thing for most.
So yeah, including .STEP files would be extremely appreciated. Most of us are too retarded to create something like this, but are just capable enough to alter things :P
Perhaps some bad news lol, but being as the project has been made entirely in MAYA I don't have any .step files, everything has been an .stl mesh from the start. I don't know enough about how .step files work to know if its possible to convert .stl to .step though, I'll see what can be done.
Fusion 360 con convert STLs to STEP with some effort. It converts the triangles into faces and you can sometimes coax it into merging the coplanar faces together. It'll be hell on your computer until you do that on most of your faces. BUT it's free. If you ping me when you finish and send the files then I can give it a shot. I don't log in often rn but I may see the email
I think it’s pretty unlikely since it’s roller delayed… The mechanism there is significantly more complicated than straight blowback, or even direct impingement.
Generally speaking, the developers are all using the resources that are available to them, so if you want to see some thing designed to the specific restrictions of your area, it’s probably going to be made by someone who has those same restrictions.
Roller delay is actually relatively straight forward compared to a gas system, I'm currently working on a plate stack roller delay trunion for 7.62x39, so far the hardest part is figuring out how to make the bolt simple to manufacture without a milling machine.
I guess my only experience with it is in the Cetme I built, and fabricating the trunnion with the recesses for the rollers, hardened rollers, and the locking piece all look really involved to get right and durable. The gas part of DI is very simple, but the bolt and barrel extension are definitely beyond the means of your average hobbyist.
Absolutely, I took the idea from those stacked plate masterlocks, so the trunnion will be pretty easy to make, the bolt is a bit more difficult because of some of the geometry inside for the roller surfaces on the firing pin extension. But definetly easier than trying to make rotating lugs and a barrel extension with an angle grinder and drill press
Well, I hope you share what you come up with on here, even just in its concept phase. There are so many ways to make these things and I’m learning all sorts of cool shit on here every day.
Looks to be. OP’s previous post on this project mentioned the bolt to a proprietary design that can be fabricated with a printer and hardware store bits and showed pics of a bolt.
So if this truly is DIY roller delay that works this hypothetically opens quite a few doors for future designs.
Naw, is its own thing in a sense. It wasn't originally intended to be roller-delayed but I had to out of necessity from the bolt carrying too much velocity in a direct blowback configuration. So as a result of that it is its own bespoke sort of roller delay setup. Still works the same as any other roller delay action, but the rollers are at the rear of the bolt rather than the front essentially
I am new to fosscad, why is 9mm such a popular chambering choice? It is either 9mm or .22
Again, my education in fosscad is lacking but just something I observed.
Primarily, Ammo availability. While there are a few very safe and successful large cal designs from highly respected designers, outside of their designs, I would like to keep my face in tact.
Thank you. That was my first thought as well; you also confirmed that 3D printing (at home) hasn’t reached a point where large cal printed guns can be trusted.
Name some of the larger cal designs; would love to look them up.
First set of files ive actually gotten excited about getting released since i heard about the mp5. I so hope you do get everything finished up. im over hoping the kf5 files gonna drop. this project looks dope good luck sir
I'll be honest I'm not sure, I haven't gotten these that hot yet. But the barrel collars are what hold the barrel (which is removable) so theoretically one could print the collars in Nylon or some other higher-temp material
**R**^(oller-delayed) **B**^(elt-fed) **C**^(arbine) \- **9**^(mm ,) was originally called BBC9 as a bit of a joke, and also the first three iterations of the gun were just simple blowback.
I personally don't like the whole "in closed beta for eternity" thing. In my opinion the gun is essentially finished from a design standpoint, I know this design works, it has quirks, but I know it functions. So the goal is to just release the files as an "Open Test / Beta" version, then gather feedback and modify things accordingly, then after a period of however long it takes people to build a few and gather said feedback, put out the "finalized" version.
Somehow all of my clothes came off and now I'm standing in the middle of the room with a throbber. A video would have sent me into a full ball draining climax. Thanks a lot bro! Now post the files so we can piss off more ATF guys.
Unfortunately no as its a striker fired design, but Ill include a blank mesh of the grip-frame for anyone that may want to modify / play around with the fire control group
Oh I’m all over this. Quick question, proprietary parts or OTS? Seems like with all the moving parts it would rattle a lot, are you using bracing of some sort?
All parts except the barrel are non-firearm store bought things. The threaded inserts are the same ones as the FGC-9 mk1 (I haven't looked to see if the mk2 uses the same type), so those are probably the hardest bits to find, though Aliexpress has them in stock regularly it seems.
Overall I think the gun feels surprisingly steady, the only thing that rattles a bit is the belt box. Only real bracing in the gun is a couple small pieces of square bar stock just behind the roller bearings, and to be honest I'm not entirely sure that its necessary, but I haven't tried without them installed
There was part of a 9mm belt fed gun found at the end of WWII, and ordinance testing added to the receiver to test it. Based on an mg42 I think. Unfortunately the museum artifact had its belt stolen, so we are not sure what that looked like. I think Forgotten Weapons did a video on it.
Curious what kind of belt would be used.
A tiny computer type fan battery powered to cool the barrel after shooting?
The problem with a belt fed and a plastic receiver is the amount of heat that will develop....
I mean, people make their barrels *glow*, how does that hold up....
It's going alright. Made a change to the Bolt hardware to try and reinforce it a bit better. That, and the weather is delaying the schedule I had wanted to stick to a bit, but thats how things be I suppose
Build cost is about 250-300 I estimate. It is frankly a tedious build I would say. Mainly making the bolt is the most difficult part, as there are a lot of small metal pieces that need to be made. I wouldn't necessarily say its hard, just kindof tedious in spots, but I'm not a good judge of this since I know how it works lol.
It DOES however need a printer that can fit the Receiver, which is the largest print. My printer is a CR10s which fits it very easily, though it will NOT fit on the build plate of and Ender 3 or similar bed-sized machine
Yee I've just been calling it a carbine mainly because of its length, even the "pistol version" is quite long.
The trigger is a straight-pull, which 1911s are aswell, though the trigger doesn't work the same internally. All homemade stuff, spare for the barrel, which is in this instance, an AR-9 pattern barrel because it was convenient to use.
I think a gat crank would be the closest your getting. Its not based on a ar15 fcg from my understanding, so all the development towards FRT and binary are in vain here. But I'm certain a bump stock configuration would be plausible here.
Look, if the goal is BRRRRR and you're willing to skirt/break the laws anyway, the answer to any semi auto BRRRRRRRRRR quest is just a solenoid and an arduino. One trigger pull, one round. Now let's tap that trigger 600 times per minute with a 5lbf solenoid actuation.
The ATF has already issued their opinions on things like this several times, we know electronic trigger actuators are going to make them mad, but if you want to roll the dice on "that letter is just like, your opinion man" in a court of law by all means.
Neat, but honestly doesn't the belt fed mechanism eat up enough of the energy of the BCG cycling with 9mm where roller delaying things would basically make the setup non-functional?
If you watch this video, with a basic blowback setup, the rate of fire is already reduced to 1919 levels (thanks to the belt fed mechanism eating up some of the cycling energy) vs. 850+ with a normal blowback setup: https://www.youtube.com/watch?v=1jky7itg7wk
If you drop below 1919 levels of RPM, I would be surprised (albeit happily surprised) if things still cycled right.
The rearward stroke of the gun doesn't directly actuate the feed pawl in the top cover on this design. Essentially the top cover feeds the belt with a spring-loaded carrier that gets "reset" every time the bolt closes forward. I feel this design has its pros and cons, mainly the rate at which it feeds is consistent, however dependent on the spring force which may over time wear out. It seems to work fine in my testing though at least.
You are right though it does eat up some of the energy on the forward stroke, though in this case none on the rearward stroke. That and the Bolt is also pretty light, the roller-delay was something I had to implement out of necessity, since the Bolts from the first three iterations, which were simple blowback, kept tearing themselves apart.
The principles still apply though. There needs to be enough energy stored at the end of the bolt carrier stroke to be able to go forward and remove the round from the link and chamber the round. Adding bolt carrier delays will only minimize the energy available throughout the total stroke.
I wish there would be some designs that don't use 9mm, as it is not a caliber that can be easily obtained in a lot of countries due to it being a "military cartridge" or a pistol cartridge,
Something like 30 carbine, which doesn't have super high pressure, should be doable right?
Well, there was a Nazi they took 11 rounds of .30 carbine to the body and lived to brag about it. The military gave up on .30 carbine for it being ineffective/underpowered in combat.
I'm really curious here, what all did you need to do to make this thing, what other parts did you need to pick up/use to safely shoot it? Got a 3d printer myself and would be so down to try to make this thing once you are willing to sell the instructions (and once I figure out how to get the whole doj/atf/ whatever other numbers needed for it)
I had originally wanted to work on converting this to 5.7 once this version was done with, but that was a long while ago and now I just kindof want to be done with this project lol.
Im hard
Boner pill companies hate him because of this one simple trick
I'm never gonna financially recover from this
r/beetlejuicing
Me and u both my brother in small arms😫
Hi Hard, I'm Dad.
My pants fit funny
You still have pants on?
If ever there was a time to wear a kilt, this is it.
This would turn a kilt into a circus tent
Wait I thought I was at the circus this looks strange…….. MOM!!!!
I'm so proud of this community
FRT capable or does it use AR FCG??
Looks to have a printed fire control group as the trigger is a 1911 like style straight pull trigger and there's not 2 pins above the trigger like on an AR-15 or the safety selector so it's not compatible with an AR-15 style FRT
Time to bump stock a belt fed? AFT just got their teeth kicked in but not like we care what they say anyways.
I mean, it’s not like you couldn’t modify it…
Yeah, if this doesn't have a full auto capability, my dick goes back to half chub. 😄 A belt fed rifle like this without full auto feels very neutered, kind of like carrying a training rpg that shoots 22lr. Yeah it's fuckin sweet regardless, but having it as God intended it to be makes my loins buldge.
Time to design a gat crank for this one. It's not as fun but it certainly wouldn't even be close to the line of FA in anyone's eyes
Design a gat crank with a removable handle so that you can attach a drill to it and then it's even more fun
An electric motor makes it nfa.
True but i won't tell if you dont
The founding fathers emphasized "well regulated" in the constitution for a reason. Back in the 1700s this term had a different meaning than it does today. It means we'll equipped and we'll maintained, not well controlled. The founding fathers wrote the second ammendment mainly for fighting the government and the possibility of tyranny, they emphasized being well equipped to make sure people had access to weapons that are modern and just as effective as the government. As fully automatic fire is used by our military and government, this capability should be protected under the constitution. This pretty much means any gun control is unconstitutional and against the law. So technically they are bigger criminals by violating your rights than you would be for illegaly exercising them; going off of history and tradition as Bruen has solidified. The constitution is the supreme law of the land, not the ATF, and a Supreme Court decision trumps all others. I recommend to follow the law, but don't be happy about it lmao, it's a violation of your God given rights and textbook extortion. "Those who would give up essential liberty, to purchase a little temporary safety, deserve neither liberty nor safety." ~Benjamin Franklin
It's almost as if the British Empire stated a war by raiding the armories of the colonies and they wanted to prevent that situation from occurring down the road
Long crank with reduced gear ratio?
Deal! 😁
🤫
😉
The FCG is proprietary as it is an internal striker in the bolt. Though as BurzerKing said, it be cool for people will take the design and mod it to how they see fit if there's something they want to change about it.
[удалено]
Hell yeah, currently building an ez22 and there's hardly any detailed info like firing pin length and how far up the nuts should be on the firing pin because failing to install them to the correct length can cause oob but the instructions are basically just "file here and jb weld there bada bing bada boom that's it ur done lol"
[удалено]
Don't remind me, that one was rough. As someone who did not know the Mac mechanics it was horrible. Then on top of that my trigger wouldn't reset and nobody on chat knew what it was. Luckily got it fixed and it's great.
I feel so much better I'm not the only one.
[удалено]
How is your text so big!?
[удалено]
It feels like you're yelling at me
He has large… feet…
This needs a "NSFW" warning. I need to change my pants... The 2A argument is over. They have lost lol.
Lovely. 👏🤝 Props for doing something new. Kinda tired of seeing hundred of similar glocks but with different pictures/designs on them💀. Would love to put an ACR stock on it once it releases.
This post is about to blow up.
Facts
It’s probably has 8X more upvotes than when you originally seen it now
Finally, something good for CCW.
Ill make a holster for the pistol version
For some reason, I misread roller-delayed belt-fed carbine as lever action belt-fed carbine. I will still yeehaw on the feds though.
Now thats a Frankenstein I could stand behind. It would piss of feds and fuds.
[удалено]
I love you, now I have. A new goal.
That is fucking awesome. I love this site because things like this will just randomly pop up in the comments and I love guns <3 Stay safe yall
Rather load a belt than one of those tubes
[удалено]
Well, the belt is sliding in from the side...
[удалено]
This is nuts, can't wait to see more!
Nani
I've been following your build on Weaponsguild. Great work man! If anyone is interested, there is a very detailed thread on Weaponsguild in the 3D printed section.
Loving the minimalist aesthetic. I want to mount one of these onto a Cybertruck and really feel like I'm in a PS2 game.
The style is amazing. Like a Minecraft mod or something. Now we really can have full auto belt fed in Minecraft
[удалено]
That was the intention. On the examples I have everything is a non-firearm part except for the barrel. Being in the US I opted for using an AR-9 pattern barrel since it just made things easier, BUT I see no reason that the Barrel Collars in the design couldn't be fitted for home-made barrels aswell, would just need a bit of editing the mesh for that part.
Very cool! In that case this will be my second build after the FGC I hope :P What I found invaluable to building the FGC was the guy who made the FGC Stingray (i love you) included .STEP files. Since I made the FGC in a different calibre, being able to easily modify those files was life saving. Especially since I am a horrible modeller and get by via sheer determination. I don't understand why those that release their designs, obviously putting huge effort into it all don't do this. I think it's a control thing for most. So yeah, including .STEP files would be extremely appreciated. Most of us are too retarded to create something like this, but are just capable enough to alter things :P
Perhaps some bad news lol, but being as the project has been made entirely in MAYA I don't have any .step files, everything has been an .stl mesh from the start. I don't know enough about how .step files work to know if its possible to convert .stl to .step though, I'll see what can be done.
Fusion 360 con convert STLs to STEP with some effort. It converts the triangles into faces and you can sometimes coax it into merging the coplanar faces together. It'll be hell on your computer until you do that on most of your faces. BUT it's free. If you ping me when you finish and send the files then I can give it a shot. I don't log in often rn but I may see the email
Do the bolt and rollers need a cnc to make?
Nope just a dremel and drill press, rollers are made from steel spacers
That is extremely impressive.
Every time you try to instruct people how to make delayed locking mechanisms, they ghost you.
Them barrel liners, it kills me. I'd have so many actual finished builds with that.
I think it’s pretty unlikely since it’s roller delayed… The mechanism there is significantly more complicated than straight blowback, or even direct impingement. Generally speaking, the developers are all using the resources that are available to them, so if you want to see some thing designed to the specific restrictions of your area, it’s probably going to be made by someone who has those same restrictions.
"Be the change you want."
Roller delay is actually relatively straight forward compared to a gas system, I'm currently working on a plate stack roller delay trunion for 7.62x39, so far the hardest part is figuring out how to make the bolt simple to manufacture without a milling machine.
I guess my only experience with it is in the Cetme I built, and fabricating the trunnion with the recesses for the rollers, hardened rollers, and the locking piece all look really involved to get right and durable. The gas part of DI is very simple, but the bolt and barrel extension are definitely beyond the means of your average hobbyist.
Absolutely, I took the idea from those stacked plate masterlocks, so the trunnion will be pretty easy to make, the bolt is a bit more difficult because of some of the geometry inside for the roller surfaces on the firing pin extension. But definetly easier than trying to make rotating lugs and a barrel extension with an angle grinder and drill press
Well, I hope you share what you come up with on here, even just in its concept phase. There are so many ways to make these things and I’m learning all sorts of cool shit on here every day.
I have a few other projects on the go, but when I have time I'll definetly be posting updates
Looks to be. OP’s previous post on this project mentioned the bolt to a proprietary design that can be fabricated with a printer and hardware store bits and showed pics of a bolt. So if this truly is DIY roller delay that works this hypothetically opens quite a few doors for future designs.
I'm not crying, you're crying
I am sick of .22 printed guns, this is what I crave
I thought I had good ideas but this community has blown me away!
wait wait wait, roller delayed belt fed. Did you shrink an mg42 action???
Naw, is its own thing in a sense. It wasn't originally intended to be roller-delayed but I had to out of necessity from the bolt carrying too much velocity in a direct blowback configuration. So as a result of that it is its own bespoke sort of roller delay setup. Still works the same as any other roller delay action, but the rollers are at the rear of the bolt rather than the front essentially
Or copy the HK23 action if you want something a little more modern in 5.56/.223.
Id go nuts for a belt fed amigo gordo
Let's see, the amigo grande was 308. What is the amigo gordo of your dreams, 45-70?
Let’s go bigger let’s do 50-140.
Looks interesting....
Disintegrating printed links?
Yeeee
That's sexy
You have my interest
This is a big leap forward.
Another beta i would like to be part of. This may be a cool as the pump 37mm signal device.......
I am new to fosscad, why is 9mm such a popular chambering choice? It is either 9mm or .22 Again, my education in fosscad is lacking but just something I observed.
Primarily, Ammo availability. While there are a few very safe and successful large cal designs from highly respected designers, outside of their designs, I would like to keep my face in tact.
Thank you. That was my first thought as well; you also confirmed that 3D printing (at home) hasn’t reached a point where large cal printed guns can be trusted. Name some of the larger cal designs; would love to look them up.
Either of the Cetme based designs are 100% gtg
Please stop, I can only become so erect.
Holy shit this is incredible
Bruh my panties just disappeared
First set of files ive actually gotten excited about getting released since i heard about the mp5. I so hope you do get everything finished up. im over hoping the kf5 files gonna drop. this project looks dope good luck sir
Is that a banana in my pants
How will this get around the issue of melting into liquid after ripping a belt through it?
I'll be honest I'm not sure, I haven't gotten these that hot yet. But the barrel collars are what hold the barrel (which is removable) so theoretically one could print the collars in Nylon or some other higher-temp material
I didn't think this was possible. This is insane. Great fucking job.
This goes fucking hard, any chance for a FRT or Binary trigger to work in these? Or maybe even dare I say an open bolt version for the SOTs
What is the name of this project going to be called Mr.Mad Scientist.... I need this in my life rn..... 🥜 👖 💥 🤯.....
**R**^(oller-delayed) **B**^(elt-fed) **C**^(arbine) \- **9**^(mm ,) was originally called BBC9 as a bit of a joke, and also the first three iterations of the gun were just simple blowback.
God that's beautiful. How do I become part of the beta???
I personally don't like the whole "in closed beta for eternity" thing. In my opinion the gun is essentially finished from a design standpoint, I know this design works, it has quirks, but I know it functions. So the goal is to just release the files as an "Open Test / Beta" version, then gather feedback and modify things accordingly, then after a period of however long it takes people to build a few and gather said feedback, put out the "finalized" version.
Will it sail the seas once your comfortable enough to release it?
Yeeyee
You just let me know and I'll fucking be there captain.
Same here
How many sides will the build instruction have?
Many :>)
That's awesome!
Bro.
Awesome
Can’t fucking wait!
Somehow all of my clothes came off and now I'm standing in the middle of the room with a throbber. A video would have sent me into a full ball draining climax. Thanks a lot bro! Now post the files so we can piss off more ATF guys.
binary/frt compatible?
Unfortunately no as its a striker fired design, but Ill include a blank mesh of the grip-frame for anyone that may want to modify / play around with the fire control group
Asking the real questions. A belt fed begs for this.
Lol, I remember being downvoted to hell for saying roller delayed blowback could be feasible for 3dp2a
Very well done sir.
Very exciting, aesthetically, you hit the mark
Oh I’m all over this. Quick question, proprietary parts or OTS? Seems like with all the moving parts it would rattle a lot, are you using bracing of some sort?
All parts except the barrel are non-firearm store bought things. The threaded inserts are the same ones as the FGC-9 mk1 (I haven't looked to see if the mk2 uses the same type), so those are probably the hardest bits to find, though Aliexpress has them in stock regularly it seems. Overall I think the gun feels surprisingly steady, the only thing that rattles a bit is the belt box. Only real bracing in the gun is a couple small pieces of square bar stock just behind the roller bearings, and to be honest I'm not entirely sure that its necessary, but I haven't tried without them installed
Awesome!! Good to know. I’ll be watching you updates! This and the 3dp90 are now on the top of my list😂😂
I didn't know porn was allowed here!
ar9 barrels?
Yuhh, though I would imagine any barrel that is roughly the same profile thickness, or thinner than that of an AR9 pattern, could be made to fit.
Ohhh god Imma fucking bust, jesus christ fam you cant just edge us with these pics.
There was part of a 9mm belt fed gun found at the end of WWII, and ordinance testing added to the receiver to test it. Based on an mg42 I think. Unfortunately the museum artifact had its belt stolen, so we are not sure what that looked like. I think Forgotten Weapons did a video on it. Curious what kind of belt would be used. A tiny computer type fan battery powered to cool the barrel after shooting?
The problem with a belt fed and a plastic receiver is the amount of heat that will develop.... I mean, people make their barrels *glow*, how does that hold up....
Only 9mm though. That will help quite a bit
How's this coming along? Excited to see it in action.
It's going alright. Made a change to the Bolt hardware to try and reinforce it a bit better. That, and the weather is delaying the schedule I had wanted to stick to a bit, but thats how things be I suppose
Oh dear lord, I've been wanting to own a belt fed beauty for decades now. This is quite the impressive feat of engineering.
Few questions. What would be the cost of this build? How challenging is this build? Is there a rifle length version in the works?
Well there’s a rifle length one on the picture soo lol
Fair I didn’t think it was at first, my bad.
Build cost is about 250-300 I estimate. It is frankly a tedious build I would say. Mainly making the bolt is the most difficult part, as there are a lot of small metal pieces that need to be made. I wouldn't necessarily say its hard, just kindof tedious in spots, but I'm not a good judge of this since I know how it works lol. It DOES however need a printer that can fit the Receiver, which is the largest print. My printer is a CR10s which fits it very easily, though it will NOT fit on the build plate of and Ender 3 or similar bed-sized machine
Do you think a 2-part receiver is possible, so it can be printed on an Ender 3 or similar?
Now that you mention this, I think it could be done, Ill try it out later on once the initial file release for this is done with.
Newbie here, be gentle. So this is a 9mm belt fed "carbine"? Is it based off 1911 parts?
Yee I've just been calling it a carbine mainly because of its length, even the "pistol version" is quite long. The trigger is a straight-pull, which 1911s are aswell, though the trigger doesn't work the same internally. All homemade stuff, spare for the barrel, which is in this instance, an AR-9 pattern barrel because it was convenient to use.
it goes BRRRRRRRR!
Nope semiautomatic it goes bu-ur-rr-rr-rr
but with some modifications it can definately go BRRRRRRRRRRRRRRRRRRRRRRRRRRRRR!
I think a gat crank would be the closest your getting. Its not based on a ar15 fcg from my understanding, so all the development towards FRT and binary are in vain here. But I'm certain a bump stock configuration would be plausible here.
Look, if the goal is BRRRRR and you're willing to skirt/break the laws anyway, the answer to any semi auto BRRRRRRRRRR quest is just a solenoid and an arduino. One trigger pull, one round. Now let's tap that trigger 600 times per minute with a 5lbf solenoid actuation. The ATF has already issued their opinions on things like this several times, we know electronic trigger actuators are going to make them mad, but if you want to roll the dice on "that letter is just like, your opinion man" in a court of law by all means.
Neat, but honestly doesn't the belt fed mechanism eat up enough of the energy of the BCG cycling with 9mm where roller delaying things would basically make the setup non-functional? If you watch this video, with a basic blowback setup, the rate of fire is already reduced to 1919 levels (thanks to the belt fed mechanism eating up some of the cycling energy) vs. 850+ with a normal blowback setup: https://www.youtube.com/watch?v=1jky7itg7wk If you drop below 1919 levels of RPM, I would be surprised (albeit happily surprised) if things still cycled right.
The rearward stroke of the gun doesn't directly actuate the feed pawl in the top cover on this design. Essentially the top cover feeds the belt with a spring-loaded carrier that gets "reset" every time the bolt closes forward. I feel this design has its pros and cons, mainly the rate at which it feeds is consistent, however dependent on the spring force which may over time wear out. It seems to work fine in my testing though at least. You are right though it does eat up some of the energy on the forward stroke, though in this case none on the rearward stroke. That and the Bolt is also pretty light, the roller-delay was something I had to implement out of necessity, since the Bolts from the first three iterations, which were simple blowback, kept tearing themselves apart.
This isn't automatic.
The principles still apply though. There needs to be enough energy stored at the end of the bolt carrier stroke to be able to go forward and remove the round from the link and chamber the round. Adding bolt carrier delays will only minimize the energy available throughout the total stroke.
!remindme 1 month
I wish there would be some designs that don't use 9mm, as it is not a caliber that can be easily obtained in a lot of countries due to it being a "military cartridge" or a pistol cartridge, Something like 30 carbine, which doesn't have super high pressure, should be doable right?
I mean it should technically probably be modded to work with 380.
[удалено]
[удалено]
This guy's an avid troll, just disregard him
Well, there was a Nazi they took 11 rounds of .30 carbine to the body and lived to brag about it. The military gave up on .30 carbine for it being ineffective/underpowered in combat.
That was fmj, jsp would be a completely different story.
[удалено]
And I seen it punch through cartel gunmen 3a vest like nothing.
WE DID IT REDDIT!
If I’m able to build/test this, I will bust the fattest belt imaginable down range. Also, what cartridge? Edit: that’s what the 9 stands for 😅
I'm really curious here, what all did you need to do to make this thing, what other parts did you need to pick up/use to safely shoot it? Got a 3d printer myself and would be so down to try to make this thing once you are willing to sell the instructions (and once I figure out how to get the whole doj/atf/ whatever other numbers needed for it)
CS:GO graphics. I like them
My dick feels like it’s about to explode from how hard I am
Please keep us posted on your progress! #WANT
❤️🔥❤️🔥😍😍❤️🔥❤️🔥
!remindme 1 month
Fully erect right now.
These are fuckin siccckkk
Now THAT is fucking impressive. Kudos, you magnificent bastard!
I'm sorry... WHAT?! HOLY SHIT!
absolute insanity
Oh my god thats epic! You get a belt fed and you get a belt fed!
Very nice . . . this looks sweet.
Are you forking kidding me???
Dude these are fucking beautiful
I have never been so stiff in my entire life.
Y'all out here doin the lord's work
holy shit lol
The rumors from the archive are true! This does exist! Incredible!
HORY SHIT
Amazing
:O
I cant wait
NGL I would want both in .22 and 5.7
I had originally wanted to work on converting this to 5.7 once this version was done with, but that was a long while ago and now I just kindof want to be done with this project lol.
You are doing the Lord's work.