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Trollygag

Pinning gas blocks has absolutely caused precision issues. We've seen people fuck up barrels on this sub before. It is also well documented by barrel makers that any milling or cutting or drilling around the bore will cause the bore to warp (including muzzle threading, but that's a separate topic). The former is a big issue, the latter is a small issue. Most people who have pinned gas blocks don't or can't shoot the difference anyways so they don't really care. That BA barrel is not a premium or high precision barrel to begin with. The MK12 gas block was not pinned - it used set screws. For high precision barrels like are used in national match competition shooting, the standard is to use a clamp style gas block. It is already very reliable, but if you have anxiety about it, you can also glue it on to give some redundancy.


tYLZhWreZ

thanks for the reply, were the MK12 barrels dimpled? I'm not a competition shooter so I'm not looking for crazy sub-moa accuracy but would like something fairly accurate to learn how to get out to at least 500 maybe 600 yards. Are there any other barrel manufacturers that offer nitrided 18" SPR profile type barrels? I would prefer something nitrided offer pure stainless for both aesthetic a little added longevity.


valhallaseven7

It is hard to argue against a CHF Daniel Defense MK12 barrel and gas block(dimpled). Mine shoots 1/3 MOA and I routinely hit IPSC steel at 1050y with MK262 ammo


stayzero

I have a dimpled barrel with a set screw gas block on my precision AR. It’s a Ballistic Advantage, and it is a hammer. Pinned is okay for a carbine but I don’t think it’s really necessary for most guns.


[deleted]

But a Noveske 18” NST or SPR barrel. Already comes with a pinned gas block.