BCM Blem Upper Receiver 300 Blackout 9 1:7 Twist Pistol Length with BKF 9.25 MLOK Rail Complete Upper Assembly

This is 100% Made in the USA! It's the ultimate monster of firearm components, but in a good way.  Assembled with a BCM M4 blem upper (minus charging handle and BCG), Ballistic Advantage Modern Series 9" 300 Blackout DRP profile pistol-length gas 4150 CMV 1/7 twist barrel, BKF gas tube and block, and BKF 1.75" blast forwarding device, then finished off with a BKF 9.25" MLOK Handguard, this upper is ready for action. 

Just add a charging handle and a BCG, and you're set to attach it to your lower and unleash some freedom at the range. Get ready to turn heads and hit targets, because this American made marvel doesn't mess around.

Caliber – 300 Blackout 

Barrel Length – 9″

Barrel Material – 4150 Chrome Moly Vanadium

Finish –QPQ Corrosion Resistant Finish

Profile – DRP

Gas System Length – Pistol Length 

Gas Block Journal – .750″

Twist Rate – 1:7 

Muzzle – 5/8x24 Threaded

Important Note:

These items are not factory built BCM uppers.  They are meticulously assembled by our in-house armorer using the most reliable parts we can find and use ourselves.

We do not accept returns on used, blemished (purchased as blem), or custom engraved/laser etched items. 

All NFA/ATF rules apply. You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is prohibited, except when permanently attaching a muzzle device extending the length to 16 inches.