BUSHMASTER CARBON-15 MODEL 4 CARBINE
5.56 NATO cal., GIO, carbon composite receiver, collapsible tube stock, 14 1/2 (LE only) or 16 (disc. 2012) in. barrel with compensator, 30 shot mag., semi-auto design styled after the military M4, 5 1/2 lbs. Mfg. 2005-2013.