BCM MK2 11.5-inch Pistol with RAIDER-M 10 Rail and EOTech EXPS3

A BCM MK2 11.5-inch upper set up as a braced pistol on a Radian ADAC ambidextrous lower, with BCM's RAIDER-M 10 rail giving both M-LOK and Picatinny sections. Up top an EOTech EXPS3 on a Unity riser pairs with a Holosun 3x magnifier on a Unity flip mount. A HUXWRX Flow 556K rides on a HUXWRX flash hider, and a Geissele SSA-E, Radian Raptor and SBA5 brace finish it off.