This is a used Colt M4 Carbine chambered in 5.56 NATO. It features a 16-inch barrel, 30-round magazine, A2 front sight post, MA Tech rear sight, Knight Armament picatinny handguard, and Magpul furniture. Overall, this Colt is in good condition with normal handling wear on the barrel, receiver, and handguard. Bore condition is good with crisp rifling. This would be a good choice for home defense. Buy online today!