This Bear Creek Arsenal AR-15 12.7x42 Complete upper has a 16" heavy barrel with a 416R stainless steel finish, and features a 1:20 twist, with a carbine length gas system. This 12.7x42 AR-15 also includes a 15" MLOK rail, a forged upper receiver, a BCA AR15 Bolt Carrier Group, Flash Hider, rear charging handle, and will work on a mil-spec AR-15 multicaliber lower.
*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.
WARNING: This product can expose you to chemicals, such as lead and other petroleum products, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to the California P65 Warning site.