AR-15 300 Blackout 16" Upper – 15" M-LOK, Cerakote, Choose Color

16" 300 BLK Cerakote Upper: Specs

AR-15 .300 BLK 16" PISTOL LENGTH 1:8 TWIST / 15" MLOK / CERAKOTE & CHOOSE COLOR ON TOP OF PAGE. This drop-in 300 Blackout upper will attach to virtually any standard AR-15 lower assembly. 

Includes:

• Barrel - 16" 4150 CMV, 1x8 twist, pistol length gas system. Phosphate finish. Chambered in 300 blk. Button rifled. .750 under gas block. 5/8-24 threads completed with A2 flash hider in nitride and crush washer. M4 feedramps.

• A3 flat top upper receiver - Made from certified 7075-T6 aluminum forgings. Black hardcoat anodized to gov. specs. Forward assist and dust cover installed. M4 feedramps.

• Gas system - Low profile .750 steel gas block.  Pistol length gas tube.

• Handguards - 15" light profile hybrid mlok rail. Made from aircraft quality aluminum.  Anodized black.

Available in FDE, ODG, Grey. Does not come with BCG/CH.

FAQ

Can 300 Blackout ammo be mixed up with 5.56?

Keep them separate. A 300 BLK round can chamber in a 5.56 rifle and firing it can destroy the gun, so mark your 300 BLK magazines and uppers clearly.

Is a bolt carrier group included?

No. Add a standard AR-15/5.56 bolt carrier group; it is available as an add-on on this page.

What twist rate does the barrel use?

A 1:8 twist, which stabilizes both heavy subsonic and lighter supersonic 300 Blackout loads.

Related: 300 Blackout AR-15 uppers · 300 Blackout suppressors · 5.56 NATO vs 300 Blackout

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