This BCA AR-15 complete 6.5 Grendel rifle length upper has a 20" heavy barrel with a parkerized finish, and features a 1:8 twist rate, with a rifle length gas system. It includes a 15" MLOK rail, an M4 flat-top forged upper receiver, a BCA bolt carrier group, a flash hider, and a rear charging handle. This 6.5 Grendel upper is compatible with any mil-spec AR-15 lower.
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*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.
|4150 Chrome Moly Vanadium
|5/8 x 24
|6.5 Grendel Type II
|Gas Block System
|Complete Upper Assembly
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 - ...
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