ZM-4 SERVICE SERIES M4A3 FLAT-TOP CARBINE
5.56 NATO cal., GIO, 16 in. M4 profile chrome-lined barrel, stainless steel carbine length gas tube, front sight gas block, A2 flash hider, 30 shot mag., forged receivers, M4 style collapsible stock, 6-pos. Mil-Spec buffer tube, round M4 st...