This BCA AR-15 complete 9MM pistol length upper has a 7.5" Heavy barrel with a parkerized finish, and features a 1:10 twist rate, with a blow back gas system. It includes a 6.5" MLOK rail, a branded M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected). This 9MM upper is compatible with any mil-spec AR-9 lower.
ALL OF BCA 9MM UPPERS ARE DESIGNED FOR USE WITH GLOCK STYLE MAGAZINES.
Shop more 9mm Uppers!
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||1/2 x 36|
|Feed Ramp||Single Feedramp|
|Charging Style||Right Side Charging|
|Classification||Complete Upper Assembly|
What mag works best for BCA 9mm's?
Check out our AR9 and Genesis Mags here: https://www.bearcreekarsenal.com/guns-parts/ar-9/ar-9-parts/magazines.html
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...