.450 Bushmaster Complete Upper 16" - Bear Creek Arsenal

Bear Creek Arsenal's (BCA) AR-15 Complete Upper has a 16” barrel with a heavy profile, made of 4150 steel with a Parkerized finish, and features a 1:24 Twist Rate, a Carbine length gas system and .875 Gas Block. The Upper includes a 15” MLOK Rail, an M4 flat-top forged upper receiver with forward assist, a B.C.A. Bolt Carrier Group, an LS Flash Hider, and a Charging Handle. It is chambered in .450 Bushmaster and machined with a single feed ramp in the barrel extension.

This upper ships out with three test casings.

• 16” Heavy Barrel
• 4150 Chrome Moly Vanadium
• Parkerized Finish
• 1:24 Twist
• 15” MLOK Rail
• .450 Bushmaster
• Carbine Length Gas System
• M4 Flat-Top Forged Upper Receiver
• Standard Bear Creek Arsenal Bolt Carrier Group
• Charging Handle
• LS2 Flash Hider

This BCA AR-15 Complete Upper, like all BCA products, is subjected to numerous QA/QC checks which for BCA's firearms and complete upper receiver assemblies includes test firing prior to approval and shipment. This rifle is also backed by BCA's Bear Den Guarantee.