The BCA AR-10 Complete Upper Assembly has a 20" parkerized Heavy barrel, a rifle length gas system, and a 1:8 twist rate. The barrel is chambered in .243 and is 1st gen DPMS Low Profile. The assembly includes a 15" MLOK Split Rail, a forged upper receiver with forward assist, bolt carrier group, flash hider and a rear charging handle.
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.
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?
Caliber
Magazine
Ammo Grain Weight
Ammo Brands
BCA Status
AR15 - 223/5.56
MagPul PMAG, MFT
55, 69, 75
Sierra
AR15 - 224 Valkyrie
ASC
90
Sierra
AR15 - 300 Blackout
MagPul PMAG
110
Sierra...
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...
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