Thread: 22lr ar15 upper

Originally Posted by Koshogi

I've got a .22lr upper I assembled. CMMG barrel and bolt conversion kit with barrel collar.

It runs flawlessly. Only malfunctions have been ammo related.

Great fun. Highly recommend one.

Same here. Mine's got a 16" barrel and runs very well. Accuracy is also very good. I run CCI Std for practice and Winchester Subs for hunting. Mine could be an exception but rans flawlessly with both ammo types. I run either Milspec trigger group or a Giessle. I've tried it with a Jard but it wasn't reliable.

Also got a CMMG factory assembled 20" upper. Not as accurate as the 16" but just as reliable. I run 10 round (deplabked to 15 rounds) Black Dog magazines. Also got a 26 rounder but thats a bit fussy. It is just the mag as I borrowed another and that ran fine.

Summing up. Go for it. Dedicated upper is way better than a conversion kit.