BCM MK2 16-inch MCMR-15 on an Aero Gen 2 Lower, All FDE

An all-FDE 16-inch carbine: a BCM MK2 Standard mid-length upper with the MCMR-15 rail on an FDE Aero Gen 2 lower. It runs a Geissele SSA-E, a RISE RA-212 charging handle, a Trybe nickel-boron carrier and a KAK H2 buffer, with a B5 Bravo stock and P-Grip 23. A Primary Arms SLx 1-6 LPVO was on its way.