ASK AN EXPERTDescription
- 450 Bushmaster Caliber
- 16" Black Nitride Barrel
- 7075-T6 Forged Aluminum Upper Receiver
- 15" Free Float Key-Mod Rail System
- Low Profile, Carbine Length Gas System (DGIS)
- A2 Style Compensator
- Black Nitride Finish Bolt Carrier Group
The AMERICAN TACTICAL IMPORTS 450 Bushmaster Upper (ATI15MS450BM) is a drop in ready, upper receiver assembly that 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.
The upper is 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.
