This BCA AR-10 complete .243 rifle length upper has a 20" parkerized Heavy barrel, and features a 1:8 twist rate, with a rifle length gas system. It includes the new 15" MLOK Split Rail, an M4 flat-top billet upper receiver, a BCA AR10 bolt carrier group, a flash hider, and right-side charging (Gen2) handle (patent protected). This 243 is compatible with 1st gen DPMS low profile lowers.
*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.
What magazine/ammo does BCA recommend for each caliber?
CaliberMagazineAmmo Grain WeightAmmo Brands BCA Status
AR15 - 223/5.56
MagPul PMAG, MFT
55, 69, 75
Sierra
AR15 - ...
What platform pattern are your AR10 Uppers?
Our uppers are made based on the DPMS Gen1 Low Profile model.
With the AR10, there are many different designs and models out there, and each company tends to create and design its own unique platform. For that reason, we cannot guarantee the fitment...
Please, mind that only logged in users can submit questions
About the BC-10 | .243 Winchester Right Side Charging Upper | 20" Parkerized Heavy Barrel | 1:8 Twist | Rifle Length Gas System | 15" MLOK Split Rail | with BCG & Charging Handle