.300 Blackout FDE Upper 16″-15″ M-Lok Handguard


Enhance your AR-15 with our .300 Blackout FDE Upper 16″-15″, featuring a military-grade upper receiver and a 15″ M-Lok handguard for versatile accessory integration. The nitride-coated, 1×7 twist button rifled barrel ensures precision and longevity. Its Flat Dark Earth Cerakote finish guarantees durability, making it an ideal choice for both tactical and long-range builds.

Product price: $204.95
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16″ .300 Blackout Upper Flat Dark Earth, No Bolt Carrier Group, 15″ Slim Matching FDE M-lok Handguard Rail

The .300 Blackout FDE Upper 16″-15″ starts with a military grade AR-15 upper receiver and USA made accessory parts that include a dust cover, forward assist, flash hider and barrel.  The blackout barrel is button rifled at a 1×7 twist rate and nitride coated for accuracy and longevity. All AR FDE parts are coated with Flat Dark Earth From Cerakote Gun Coatings by a local Certified Applicator for a lasting strong finish on the AR-15 Upper and M-lok Handguard. The M-Lok rail system allows for use of more accessory parts from different manufactures across the country.

Features of the .300 Blackout FDE Upper 16″-15″ M-Lok:

  • Flat Dark Earth Upper and Handguard
  • Chamber – .300 Blackout M4 Feed Ramp
  • Barrel Twist – 1 x 7 twist Button Rifled
  • Thread – 5/8 x 24 thread pattern
  • Barrel Steel 4150 with Black Nitride processed
  • Flash Hider – A2 Bird Cage Flash hider
  • Handguard – 15″ Flat Dark Earth Slim Free Float M-lok Rail
  • Gas Block – .75 Low Profile Gas Block
  • Upper Receiver – Flat Top M4 Flat Dark Earth Upper
  • Bolt Carrier Group – Not Included
  • Charging Handle – Not Included
  • Approx. Weight – 4 pounds
  • Made in the USA
  • SKU: DT11-082


Daytona Tactical test fires every custom AR-15 upper to verify cycling. We do not guarantee cycling with all .300 Blackout ammunition due to vast differences in the quality of ammunition. Will only warranty cycling with US made ammunition. We can not warranty cycling of the AR Upper with imported, steel cased or reloaded rounds.

Additional information

Weight 9 lbs


Barrel Length

Barrel Chamber

Barrel Twist

Barrel Thread

Barrel Material

Barrel Finish

Barrel Gas System

Gas Block Diameter

Handguard Length



Accessory Attachment Style


1 review for .300 Blackout FDE Upper 16″-15″ M-Lok Handguard

  1. 5 out of 5

    Eric T. (verified owner)

    I bought this upper back in January. I finally had time to good to the range 2 weeks ago. I shot 90 rounds total and only had one mis-feed that came on the 1st round from my second mag. I totally contribute the misfeed to the ammunition. I cleared the jam and completed that magazine and anther 30 rounds after that without any issues. By my opinion this is a great upper. I will also add that it is a perfect color match to my lower. They both are Magpul Flat Dark Earth

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