ASA-M4A3 SIDE CHARGING CARBINE
5.56 NATO cal., GIO, carbine length gas system, 16 in. M4 barrel with Nitride finish, 30 shot PMAG, A2 fixed front sight or gas block, flat side charging upper with Picatinny rail (became standard 2015), M4 feed ramps, 6-position collapsibl...