This BCA AR-15 Complete Upper has a 16" barrel with a Heavy Barrel profile, made of 4150 Chrome Vanadium Steel with a Parkerized finish, and features a 1:24 Twist Rate, a Carbine length gas system

The Upper includes a 12" MLOK Rail, an M4 flat-top forged upper receiver with forwarding assist, a BCA Bolt Carrier Group, a Flash Hider, and a Charging Handle. It is chambered in 450 Bushmaster and machined with Single feed ramps in the barrel extension.


This BCA AR-15 Complete Upper, like all BCA products, is subjected to numerous QA/QC checks which for our firearms and complete upper receiver assemblies includes test firing prior to approval and shipment.


Choose an upper designed by a US company and made in the USA. Choose Bear Creek Arsenal.

*Note – We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard/flash hider you receive.

BCA .450 Bushmaster, 16" Parkerized Heavy Barrel, 1:24 Twist 12" MLOK

SKU: 651-UA450CHB16124P.875-12MLOK3
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