16 IN. M4 MELONITED QUAD RAIL RIFLE
5.56 NATO cal., carbine length gas system, 16 in. M4 profile barrel with black Melonite finish and M4 extension, threaded muzzle, A2 flash hider, M4 collapsible stock, M4 feed ramp flat-top upper receiver, Mil-Spec forged lower receiver, lo...