Has anybody used the AX556 (which is a new lower built for military contract specs) as a lower for a .22lr upper. I'm interested in the DPMS bull barrel .22lr upper. In particular has anybody put a DPMS or CMMG or other .22lr upper on an AX556.
The reason I'm going along these lines is that I won't have to keep a bullet button installed if I'm keeping a .22lr upper on the gun. All you bullet button buffs can tell me if this is lawful. Thanks for the help guys. --
The reason I'm going along these lines is that I won't have to keep a bullet button installed if I'm keeping a .22lr upper on the gun. All you bullet button buffs can tell me if this is lawful. Thanks for the help guys. --

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