usmp216Upper build parts are as follows. LMT MRP-L MLOK 11.5? ‘Specwar’ Upper Receiver Chassis (L7Z1A) LMT MRP 12.5? 5.56 Midlength ‘Specwar’ Barrel (L7MJ1B) Microbest Full-Auto M16 Bolt Carrier Group, Phosphate & Chrome-Lined Geissele Automatics Super Charging Handle, Black (05-313B) Magpul Pro BUIS Set Upper has seen 60rds and will come with A2 and not muzzle brake shown.
