boisepaw
boisepaw
Has anyone built an AR-15 style rifle in 9 mm or even in 22lr? Can you get parts kits to help with the process?
Build a pistol caliber AR style rifle?
- Thread starter boisepaw
- Start date
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Muleskinner
Ultimate Member
I built one in 22LR. You can buy the CMMG conversion kit to convert a 5.56 to 22LR. Works well and the accuracy is pretty damn good.
IX-3
Active Member
I have a 9MM AR pistol. What do you consider a parts kit? The vast majority of the parts are the same as a basic AR-15 in any other caliber. The only differences are barrel, no gas system, bolt carrier group, heavier buffer, and 9MM lower that takes either Glock, Colt, or HK magazines.
-Z/28-
I wanna go fast
Another option for a 9mm carbine is the Ruger PCC. Reasonably cheap and takes glock mags.
alucard0822
For great Justice
Built a few of both, fairly easy to avoid trouble by sticking to the same brand lower/upper/bolt/barrel for 9mm PCC builds. FM products parts tend to work and are inexpensive. Other brands may have one feature or another that you may like, but might need ejector or LRBHO tweaked. I've had the best luck with an 8oz + buffer with sliding weights and a standard carbine spring, although have had buffers down to 5oz work. Heavier 308 springs, and solid buffers work, but recoil and chambering are harsher. For 22, any 5.56 upper/ lower, but use a CMMG or Right to Bear barrel/bolt kit. Have to use a vise block like the DPMS claw to install the barrel being the barrels don"t have lugs to lock into a reaction rod or Bev block
Magnumite
Ultimate Member
“I've had the best luck with an 8oz + buffer with sliding weights and a standard carbine spring, although have had buffers down to 5oz work...”
Was the tuning effort worth the effort and expense?
Was the tuning effort worth the effort and expense?
CMMG’s radial delayed blowback system is the best thing going, IMO. Replaces the heavy bolt/buffer/.308 spring with standard weight bolt, carbine spring/H2 buffer. Much less recoil.
Keep an eye on Angstadt Arms roller delayed blowback system, too.
Direct blowback PCCs are so 2010.
Keep an eye on Angstadt Arms roller delayed blowback system, too.
Direct blowback PCCs are so 2010.
THIS. I bought a CMMG barrel/bolt combo and built my own on a standard AR15 lower. Uses Endomags and it runs like a top.
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