This BCA AR-15 complete .17 hmr rifle length upper has a 16" heavy barrel with a parkerized finish and features a 1:9 twist rate. It includes a 15" MLOK rail, a M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This upper is compatible with any mil-spec AR-15 lower with an unnotched hammer (rounded) and this upper includes the buffer spring and buffer. (Our included buffer and spring are for a carbine style, adjustable stock)
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Magazine not included. Check out Magazines here!
|Material||4150 Chrome Moly Vanadium|
|Thread Pitch||1/2 x 28|
|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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