This BCA AR-15 complete 12.7x42 rifle length upper has an 18" parkerized heavy barrel, and features a 1:20 twist rate, with a mid-length gas system. It includes a 15" MLOK Rail, an M4 flat-top forged upper receiver, a BCA AR15 bolt carrier group, a flash hider, and a rear charging handle and features the new handguard. This 12.7x42 is compatible with any mil-spec AR-15 lower.
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Magazine not included. Check out Magazines here!
*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.
|Material||4150 Chrome Moly Vanadium|
|Thread Pitch||49/64 x 20|
|Caliber||12.7 x 42|
|Feed Ramp||Single Feedramp|
|Gas System||Mid Length|
|Gas Block System||0.936|
|Charging Style||Rear Charging|
|Classification||Complete Upper Assembly|
What magazine/ammo does BCA recommend for each caliber?
These are brands that BCA uses in the facility to test fire our products. However, there are several brands that will also function properly. Caliber Magazine Ammo Grain Weight Ammo Brands BCA Status AR15 - 223/5...