From the album: MKA1919
Finished product (as of now). When it has enough US made parts for 922R compliance, then I wll add my M4 stock w/ folding mech. So far it has 4 of the required 6 US parts. Tromix stock, Tromix piston (make sure you reuse wire o ring from original piston), DPH FH, Tromix mag floor plate. I'm sure a S FCG will bring it up to 922R when available.