American Tactical Imports 450 Bushmaster Upper 16 inch BBL Parkerized 15 Keymod Rail

American Tactical Imports 450 Bushmaster Upper 16 inch BBL Parkerized 15 inch Keymod Rail
American Tactical 450 Bushmaster Complete AR-15 Upper is drop in ready, upper receiver assembly features a forged aluminum Mil-Sport AR-15 pattern upper receiver with a 16" barrel with 1:24 button cut rifling and black nitride finish chambered for 450 Bushmaster. Completed with a 15" aluminum free floated key-mod rail system over a carbine length low profile DGIS gas system, A2 style compensator and black nitride finished bolt carrier group. Fits to any AR-15 pattern lower receiver. 100% Made in USA and Assembled in Summerville, SC.
Type: Complete
Caliber: 450 Bushmaster
Barrel Length: 16"
Twist: 1:24"
Receiver Description: 7075-T6 Aluminum
Receiver Finish: Black Anodized
Barrel Length Range: 16.00" to 17.99"

Manufacturer: ATI
Mfg Number: 15MS450BM
Model: AR-15