This BCA AR-15 complete 5.56 NATO rifle length upper has a 16" heavy barrel with a parkerized straight fluted finish, and features a 1:9 twist rate, with a carbine length gas system. It includes the new 11.5" MLOK handguard, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 5.56 Nato upper is compatible with any mil-spec AR-15 lower.
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Magazine not included. Check out Magazines here!
|Material||4150 Chrome Moly Vanadium|
|Thread Pitch||1/2 x 28|
|Feed Ramp||M4 Feedramp|
|Gas Block System||0.750|
|Charging Style||Right Side 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...
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