This is a used Colt CR6920 carbine chambered in 5.56 NATO. It features a 16-inch barrel with a 1/7 twist, 20-round magazine, Magpul MBUS rear sight, A2 front sight post, Troy quad rail handguard, Magpul MOE stock, and bayonet lug. Overall, this carbine is in good condition with some handling wear on the receiver and handguard. Bore condition is good with crisp rifling. This would be a good choice for home defense. Buy online today!