ZM-4 SERVICE SERIES M4 BLOCK 1 CARBINE KAC UPGRADED Description
5.56 NATO cal., GIO, 14.5 in. barrel w/permanently attached A2 flash hider, carbine length gas system, 30 shot ASC grey alloy mag., forged receivers, MATECH rear backup sight with ranging, front sight gas block, M4 style collapsible stock, 6-pos. Mil-Spec buffer tube, Knights Armament M4 RAS carbine length handguard assembly, A2 grip, stainless steel gas tube, Knights Armament Company forward vertical grip, Mil-Spec BCG and charging handle, black anodized finish, comes with standard 2 point sling, hard case. New 2019.