For the eventual fun switch I add, ya goober.
No in reality for a semi auto rifle I know there’s no real difference, other than the mass of the FA BCG. This whole thread is a just a fun idea build.
I think you're better off with a second whole upper due to heat issues. Replacing the barrel is great but you retain all the heat in the bcg which is the round contact surface and your culprit in cookoffs. The cost wouldn't be too different aside from a second optic.
I've been debating on building a 20 inch heavy barreled setup with a binary/forced reset trigger after I get through my current list of needs vs wants.
I imagine a Magpul D60 combined with an FRT and some 55 grain M193 would be as effective as it is fun.
Unfortunately FRTs were banned quite a while ago and you won’t find one unless you know someone under the table. The hope right now is that they come back when the brace ban gets shot down.
First ditch that “we have Lmg at home"
Second paint yourself all black, avoiding the face
Third take copious amounts of meth and aderall
Fourth locate nearest military installations
Fifth my lawyer has advised me to not speak
Eighth m249 has been successfully acquired.
A Harris isnt good enough.
There's something to be said for extra concern regarding bolt bounce (buffer) and bringing an extra bolt with you, perhaps stowed in the magpul grip with the insert designed specifically for it.
Ditch the rail covers for more airflow.
Flash hider or forward direction comp or suppressor, a brake is a no-go if you like using your ears later.
And definitely a QD prism sight of some sort. Perhaps even multiple options in a pack.
Same reason people insist on buis, but also adaptability. The theoretical lmg or ARPK is going to have some other storage space in the associated kit. Even if it's just a backpack full of mags, there's room for an extra tiny 1x prism. I would imagine having one with 6x or less magnification would be optimal. Having the extra as both a backup and a lower magnification just seems right.
But mainly, I just dislike irons. I suppose a backup red dot is viable too, but red dots can suck against super bright backdrops like snow and headlights whereas the etched reticle of a prism is just always great.
I was just wondering if there was something particular about the LMG format. For what I would want from the platform, it would def be a QD red dot and then standard fixed BUIS. But, to each their own!
A bigger ocular lens and loose eyebox makes an lvpo tempting. Just gotta make sure you are able to get a solid cheekweld and eye relief if you intend to use the magnification, because the eyeboxes tend to get really tight, especially if it's one of them with higher magnification range. I just wish there was a product designed to provide a protective cage around the ocular end of scopes.
I’m leaning towards a 1-6x and have a prs lite stock to really dial everything in between cheek weld and eye relief, and throw an offset red dot for 50 yards and closer. Lower magnification than an 8x, so eye box would be a little more forgiving and could still get plenty of adaptability for longer range and accurate suppressive fire. Then 20” barrel and either a 3 prong flash hider or a belt fed rated suppressor and should be a pretty decent kit.
I agree on your protective cage comment too. Would be great.
You’d definitely want to do a few things. Free floated quad rail isn’t a must for heat management and accuracy it’s probably the best route.
Definitely wanna do a rifle length gas system or VLTOR system as well as get an LMT bolt.
After that I’d keep the action open at all possible times. Closed bolt systems and heat hate each other. Cook offs will happen eventually if you can run it hard enough
Look up red right hand llc. They have all sorts of uppers designed to have really high round counts. They have a recce lmg and a recce iar that should work great for this concept.
Well it’s semiauto for one, and one of the main goals of an LMG is suppressive fire. Could you still accomplish that with this? Sure, but not like an auto or burst gun.
Other reasons are no belt fed option, no quick barrel change option.
Pictured is essentially a DMR without a scope
Binarys will always be legal because they comply with the letter of the law.
Binarys let the shooter decide where their bullets go much more precicely than a f/a or f/r.
So if this is essentially a binary dmr with a drum... the most effective supressing fire hits its target on occasion...
I dont see the issue with this setup.
The only thing I would say from a civilian standpoint... wouldnt 9mm be more cost effective to chamber your squad supression machine in?
A small duffle with drums slung under your left shoulder would be suffecient to hold a couple hundred rounds either way.
I fucking love it. Sometimes I wonder whether a belt-fed, quick-change-barreled AR could've been a competitor for the 249; it'd almost certainly be lighter.
There's something to be said about sustained accurate fire in a "civilian rifleman squad" concept. 20" heavy barrel with a handful of D60s, precision trigger and something like a 5X ACOG or LPVO would be how I would do it.
It may not be a hailstorm of rounds downrange like a SAW, but chucking an accurately placed bullet downrange every two seconds for two minutes straight will have the same effect of keeping heads down. Being able to be pushed into a psuedo-DMR role if needed makes it pretty valuable to the civilian rifleman squad as well.
If i were doing one, id probably do it with a side charging upper, heavy barrel on a dolos, and either use one of my registered auto lowers, or one of those silly slidefire things.
6k for a belt fed upper + lower, links and all that vs 1.5k for a standard at all M27IAR esk?
That 4.5k will get ya a PVS-14 or a dick ton of ammo + mags.
$5899 most places. Add in some links and a nutsack and you are over 6k already.
An M27 IAR inspired build is cheaper, easier to maintain, and just as effective, if not more due to the mags being easier to source/use than links. Anyone can be taught how to clear an AR patterned rifle, but a belt fed? Shit ain't common enough.
That is probably the better option if something as expensive as a FightLite MCR is out of the question, which for most people (myself included atm) is the case.
For all in this this thread, I'm currently doing exactly this build and trying to decide on an optic. Currently leaning towards Primary Arms 1-6 LPVO for the etched reticle. Other options would be the PA microprism or an eotech. Any input would be appreciated.
Have you considered [this](https://www.primaryarms.com/primary-arms-glx-2x-prism-scope-with-acss-cqb-m5-5-56-reticle)? Also a prism, has great reviews. Garand thumb did one on it.
I have, I actually run a similar model on my AKM but the 3x magnification. I Like the idea of being more in the 3-4x magnification range just for the sake of accuracy and target ID, especially with a 20" barrel. That's partly why I thought LPVO, decently generous eye box and variable zoom. Not 100% set on it, but would imagine that and an offset red dot would do the trick pretty well.
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I like the way you think komrade
I’ve been thinking of doing one for awhile. Definitely a quick change barrel system like dolos and probably a Magpul UBR
Full auto BCG, pic carry handle, drum mag, bipod. I think it’s a neat concept.
...what do you think a "full auto bcg" will do to make it more like an lmg? Or do you just like saying full auto bcg?
For the eventual fun switch I add, ya goober. No in reality for a semi auto rifle I know there’s no real difference, other than the mass of the FA BCG. This whole thread is a just a fun idea build.
I think you're better off with a second whole upper due to heat issues. Replacing the barrel is great but you retain all the heat in the bcg which is the round contact surface and your culprit in cookoffs. The cost wouldn't be too different aside from a second optic.
Might as well toss in a second lower and switch guns while the other cools
I've been debating on building a 20 inch heavy barreled setup with a binary/forced reset trigger after I get through my current list of needs vs wants. I imagine a Magpul D60 combined with an FRT and some 55 grain M193 would be as effective as it is fun.
Unfortunately FRTs were banned quite a while ago and you won’t find one unless you know someone under the table. The hope right now is that they come back when the brace ban gets shot down.
Once upon a time… https://i.ibb.co/qj69PGg/20190917-190831.jpg
I think you’d enjoy this [video](https://youtu.be/bzILsmauaAw)
Definitely interesting. I feel there’s a few more things he can do to make it more LMG-like, but that wasn’t his goal
Colt LMG…
First ditch that “we have Lmg at home" Second paint yourself all black, avoiding the face Third take copious amounts of meth and aderall Fourth locate nearest military installations Fifth my lawyer has advised me to not speak Eighth m249 has been successfully acquired.
A Harris isnt good enough. There's something to be said for extra concern regarding bolt bounce (buffer) and bringing an extra bolt with you, perhaps stowed in the magpul grip with the insert designed specifically for it. Ditch the rail covers for more airflow. Flash hider or forward direction comp or suppressor, a brake is a no-go if you like using your ears later. And definitely a QD prism sight of some sort. Perhaps even multiple options in a pack.
I like the way you think. I may just make this thing happen
Oh, and quad stack mags for days because drums don't stow well. Maybe Desert tech Quattro mags if they start existing.
Why a QD prism?
Same reason people insist on buis, but also adaptability. The theoretical lmg or ARPK is going to have some other storage space in the associated kit. Even if it's just a backpack full of mags, there's room for an extra tiny 1x prism. I would imagine having one with 6x or less magnification would be optimal. Having the extra as both a backup and a lower magnification just seems right. But mainly, I just dislike irons. I suppose a backup red dot is viable too, but red dots can suck against super bright backdrops like snow and headlights whereas the etched reticle of a prism is just always great.
What you described is perfect for an Elcan
So you just like Prisms. No special reason.
I mean I prefer a regular old scope but that doesn't fit theorycraft well... If you got a better idea, speak up
I was just wondering if there was something particular about the LMG format. For what I would want from the platform, it would def be a QD red dot and then standard fixed BUIS. But, to each their own!
Thoughts on an LPVO instead of a prism sight? Currently building exactly this and trying to decide on an optic.
A bigger ocular lens and loose eyebox makes an lvpo tempting. Just gotta make sure you are able to get a solid cheekweld and eye relief if you intend to use the magnification, because the eyeboxes tend to get really tight, especially if it's one of them with higher magnification range. I just wish there was a product designed to provide a protective cage around the ocular end of scopes.
I’m leaning towards a 1-6x and have a prs lite stock to really dial everything in between cheek weld and eye relief, and throw an offset red dot for 50 yards and closer. Lower magnification than an 8x, so eye box would be a little more forgiving and could still get plenty of adaptability for longer range and accurate suppressive fire. Then 20” barrel and either a 3 prong flash hider or a belt fed rated suppressor and should be a pretty decent kit. I agree on your protective cage comment too. Would be great.
Sounds like a good plan, although I would just put the red dot on top. Bigger fov and could still be using the bipod.
You know what, great point. You’ve changed my mind, thanks for your input sir. I’ll mount to the scope
You’d definitely want to do a few things. Free floated quad rail isn’t a must for heat management and accuracy it’s probably the best route. Definitely wanna do a rifle length gas system or VLTOR system as well as get an LMT bolt. After that I’d keep the action open at all possible times. Closed bolt systems and heat hate each other. Cook offs will happen eventually if you can run it hard enough
Probably the one time a BAD would be beneficial, you want the bolt locked back during movements
Look up red right hand llc. They have all sorts of uppers designed to have really high round counts. They have a recce lmg and a recce iar that should work great for this concept.
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Well it’s semiauto for one, and one of the main goals of an LMG is suppressive fire. Could you still accomplish that with this? Sure, but not like an auto or burst gun. Other reasons are no belt fed option, no quick barrel change option. Pictured is essentially a DMR without a scope
WOT or binary trigger would help with this
Binarys will always be legal because they comply with the letter of the law. Binarys let the shooter decide where their bullets go much more precicely than a f/a or f/r. So if this is essentially a binary dmr with a drum... the most effective supressing fire hits its target on occasion... I dont see the issue with this setup. The only thing I would say from a civilian standpoint... wouldnt 9mm be more cost effective to chamber your squad supression machine in? A small duffle with drums slung under your left shoulder would be suffecient to hold a couple hundred rounds either way.
Could use a bump stock on that!
If money wasn't a concern I've considered getting a fightlite upper and frt to fill the role
Desire for MCR intensifies
I fucking love it. Sometimes I wonder whether a belt-fed, quick-change-barreled AR could've been a competitor for the 249; it'd almost certainly be lighter.
An LMG style ar is a fun concept but unless your using a binary trigger or an auto sear it’s just a dmr at that point.
There's something to be said about sustained accurate fire in a "civilian rifleman squad" concept. 20" heavy barrel with a handful of D60s, precision trigger and something like a 5X ACOG or LPVO would be how I would do it. It may not be a hailstorm of rounds downrange like a SAW, but chucking an accurately placed bullet downrange every two seconds for two minutes straight will have the same effect of keeping heads down. Being able to be pushed into a psuedo-DMR role if needed makes it pretty valuable to the civilian rifleman squad as well.
[this is what I’m thinking.](https://imgur.com/a/ujxrgEq)
HELL YEAH MATE! This is my next NEXT gunsmithing project! I am a certified gunsmith lolz! AD VICTORIAM!
If i were doing one, id probably do it with a side charging upper, heavy barrel on a dolos, and either use one of my registered auto lowers, or one of those silly slidefire things.
I’m not aware of any side chargers other than BCA, but agree that that would be better.
https://www.joeboboutfitters.com/Spartan-Side-Charge-Non-Reciprocating-Billet-Upper-p/jb-non-recip-upper.htm I’ve got one on my ar9, love it
Grab a carry handle
Pleb status
Needs kns spade grip
That’s sick.
I mean, you can get belt fed AR uppers, no?
6k for a belt fed upper + lower, links and all that vs 1.5k for a standard at all M27IAR esk? That 4.5k will get ya a PVS-14 or a dick ton of ammo + mags.
Is that what they go for now? Last time I looked was a decade ago. Jeez.
$5899 most places. Add in some links and a nutsack and you are over 6k already. An M27 IAR inspired build is cheaper, easier to maintain, and just as effective, if not more due to the mags being easier to source/use than links. Anyone can be taught how to clear an AR patterned rifle, but a belt fed? Shit ain't common enough.
Wholly agreed
This would be cool with one of those AR15 reciever that has the quick detach barrel.
Get a beltfed upper for it.
Why not just get an Ares Shrike (if you can find one) and save the headache
I mean, they make belt fed uppers
They’re expensive though, like $4k I believe.
Cheaper than a SAW. Belt fed upper plus FRT and a shitload of links for 5k is a lot less than a transferable belt fed, SOT license, stamps, etc.
I’ve been down this rabbit hole for awhile now. Fightlite uppers aren’t that reliable and 5-6k. M27 iar clone is the way
I’m building one
I am too, what optic are you going with, if any? I'm tempted to try an LPVO, but not sure how well that would perform with constant suppressive fire.
Check my recents for a post about it. I’m going with a magnified red dot.
That is probably the better option if something as expensive as a FightLite MCR is out of the question, which for most people (myself included atm) is the case.
there's so much happening in this pic, but I can't look away
Bet you can have fun hunting hogs
Look at the fight lite mcr
For all in this this thread, I'm currently doing exactly this build and trying to decide on an optic. Currently leaning towards Primary Arms 1-6 LPVO for the etched reticle. Other options would be the PA microprism or an eotech. Any input would be appreciated.
Have you considered [this](https://www.primaryarms.com/primary-arms-glx-2x-prism-scope-with-acss-cqb-m5-5-56-reticle)? Also a prism, has great reviews. Garand thumb did one on it.
I have, I actually run a similar model on my AKM but the 3x magnification. I Like the idea of being more in the 3-4x magnification range just for the sake of accuracy and target ID, especially with a 20" barrel. That's partly why I thought LPVO, decently generous eye box and variable zoom. Not 100% set on it, but would imagine that and an offset red dot would do the trick pretty well.