ATI 15MS450BM Upper 16 450BM 15\" Keymod 5R

The ATI 15MS450BM, a Complete AR-15 Upper from American Tactical, provides a ready-to-use, drop in assembly boasting a 450 Bushmaster chambered barrel. This superb piece features a 16\" barrel equipped with 1:24 button cut rifling and a resilient black nitride finish. The sturdy upper receiver is Mil-Sport AR-15 patterned and is forged from aluminum for maximum durability.The unit is elegantly finished with a 15\" aluminum free-floated key-mod rail system situated over a carbine-length, low-profile Dgis gas system. It boasts an A2 style compensator, contributing to its overall performance. The assembly is also fitted with a black nitride finished bolt carrier group for extra resilience.Designed to fit any AR-15 pattern lower receiver effortlessly, this assembly guarantees seamless integration with your existing unit. The ATI 15MS450BM is proudly 100% American made, with assembly completed to perfection in Summerville, SC.