Product details

Bear Creek Armory'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.


More Information
Caliber 450 Bushmaster
Barrel Color Black
Condition New
Caliber 450 Bushmaster
Barrel Length 16"
Twist 1:24
Barrel Finish Black

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