This BCA AR-15 complete 300 Blackout rifle length upper has a 16" heavy barrel with a 416R stainless steel finish, and features a 1:8 twist rate, with a carbine length gas system. It includes a 15" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a side charging (Gen 2) handle. This 300 Blackout upper is compatible with any mil-spec AR-15 lower. This has the new handguard.
Bear Creek Arsenal manufactures all AR-15 rifles, complete upper assemblies, barrels, bolt carrier groups (bcg), and components in-house here in Sanford, NC. Choose an American-made AR-15 complete upper assembly from Bear Creek Arsenal, designed for high accuracy and backed by a lifetime warranty. Visit our YouTube channel to see our AR-15s and AR-10s in action and get answers to common questions about your gun.
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*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.
It is the responsibility of the consumer to ensure all state, local, federal, and ITAR regulations are followed
|416R Stainless Steel
|5/8 x 24
|.300 Blackout Feedramp
|Gas Block System
|Right Side Charging
|Complete Upper Assembly
What magazine/ammo does BCA recommend for each caliber?
Caliber Magazine Ammo Grain Weight Ammo Brands BCA Status AR15 - 223/5.56 MagPul PMAG, MFT 55, 69, 75 Sierra AR15 - ...
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