Bushmaster M4 Post-Ban Carbine (XM15-E2S)
5.56 NATO cal., GIO, 16 in. barrel, fixed or telestock (new late 2004) tubular stock, pistol grip, M4 carbine configuration with permanently attached Izzy muzzle brake, 30 shot mag. became standard in late 2004, black, FDE, OD Green, phosph...