Juggernaut762
New Member
In reference to the two types of clamp on blank firing adapter for ARs that are commonly available online (military surplus BFAs), it is my understanding that the red BFAs are for 20" barrels with rifle length gas systems and the yellow BFAs are for 14.5" barrels with carbine length gas systems. The difference between them and why makes sense to me so my question is which to use for a mid-length gas system and does barrel length have a significant impact on this as well due to difference in gas port to muzzle for different gas system lengths and barrel lengths?
Thanks.
Thanks.