This BCA AR-15 Complete Upper has a 16” barrel with a Heavy profile, made of 4150 Chromemoly Vanadium steel with a Parkerized finish, and features a 1:20 Twist Rate, a Carbine length gas system, and .936 Gas Block.

The Upper includes a 15 1/4” MLOK Rail, an M4 flat-top forged upper receiver with forward assist, a BCA Bolt Carrier Group, an LS2 Flash Hider, and a Charging Handle. It is chambered in 12.7 x 42 (.50 Cal) and machined with a single feed ramp in the barrel extension.

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.

Recommended Products:

ASC Modified Follower

Defender 350 gr.

Check out Buffalo's Outdoors's Review on Youtube: https://www.youtube.com/watch?v=dbbA8lYBN_w&t=274s

WARNING: This product can expose you to chemicals, such as lead and other petroleum products, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to : This product can expose you to chemicals, such as lead and other petroleum products, which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov



