mix n' match ? M16A1 upper

AR/M4 AR Technical Discussion
1

howdy, i’ve just picked up a M16A1 upper, with no BCG, im wanting to putt my bushy M4 bolt and carrier in this new upper, and of course the bushy lower and A1 stock,

any problems you could think of ?

peabody

2

As long as the Bushmaster bolt won’t close on USGI 5.56mm FIELD gauge or a Colt 5.56mm FIELD II gauge you should be good.
If it does close on that bolt, try a brand new bolt and if it closes on that scrap the barrel.

3

thanks, i’ll see about getting a FIELD gauge,

then someday whenever i can afford it, i’ll try to get a dodak lower.

but for now, im getting closer to my dream of a full retro.

peabody

4

one more question ?

do you thinks ? i’ll have any problems with the pin’s ?

peabody