C4-R16 BILLET RIFLE
5.56 NATO cal., GIO, 16 in. barrel, carbine length gas system, low profile gas block, A2 flash hider, one 30 shot Lancer AR-15 mag., billet receivers, no sights, B5 Bravo SOPMOD stock, 15 in. free float M-LOK rail, A2 grips, black anodized ...