BLACK RAIN CUSTOM BILLET PISTOL
5.56 NATO cal., GIO, carbine length gas system, 10 1/2 in. barrel, BRO flash suppressor, low profile gas block, 30 shot custom "Don't Tread" BRO mag., uses AR-15 mags., billet receivers, Mil-Spec trigger, SBA3 brace, 10 in. M-LOK ...