M4 Buffer/Stock Questions.

[USMCM16A2]

Folks,



I have built plenty of A2 rifles in the past, but a co-worker had a question that I could not answer. Can a standard A2 butt stock/buffer combo be used on a FN barreled 16" 1:7 Twist carbine upper?. Thanks, A2

[Merc1138]

Yes.

[Mossy Man]

sorry to thread hijack,

but can a 20" rifle upper be used on a carbine lower buffer tube

[Chaos47]

Yes you can use carbine gas length on rifle buffers and tubes

You can also use a rifle length gas on a carbine buffer and tubes