Diamondback DB15 AR Rifle - FDE | 300 BLK | 16" Barrel | 12" M-LOK Rail | A2 Grip | A2 Flash Hider

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Diamondback .300 AAC Blackout AR rifle with a 12 inch aluminum M-LOK handguard.

Diamondback Firearms DB15 rifle made entirely in the USA. It uses a gas-impingement system and high quality CNC machined components. The DB15300 model features a melonite coated, 4140 chrome-moly, free-float barrel, forged 7075 T6 aluminum lower along with an A3 flattop upper receiver, no sights, and a carbine length gas system. This model has an A2 flash hider, ATI Strikeforce buttstock and buffer tube, A2 pistol grip, Diamondback 9.5" M-LOK handguard, and a FDE cerakote finish.


  • Model:  DB15CCML300FDE
  • Color:  FDE
  • Caliber:  .300 Blackout
  • Finish:  Flat Dark Earth Cerakote
  • Barrel:  Diamondback Barrels 16" 4140 Chrome-Moly, Free Float, Black Nitride
  • Barrel Twist Rate:  1:8 RH
  • Gas System:  Carbine Length Gas System
  • Bolt Carrier:  Azimuth 5.56 Sporter Model, Shot-Peened, Magnetic Particle Inspected Mil Spec 8620 carrier
  • Lower Receiver:  Forged 7075 T6 Aluminum
  • Upper Receiver:   A3 Flattop Forged 7075 T6 Aluminum
  • Handguard:  12” Aluminum M-LOK Rail
  • Pistol Grip:  A2 Style Standard Grip
  • Magazine:  30 Round Metal Mag
  • Flash Hider: A2
  • Weight:  6.65 lbs.
  • Overall Length (Stock Collapsed):  32"
  • Overall Length (Stock Expanded):  36”
  • Buttstock:  6-Position Roger's Super-Stock
  • Sights:  No Sights
More Information
ManufacturerDiamondback Firearms
Action TypeSemi-Auto
Barrel Length16"
Barrel Thread Pitch5/8x24
Barrel Type4150 Chrome-Moly Vanadium
Caliber300 BLK
Magazine Count1
Sight TypeN/A
Threaded BarrelYes
Twist Rate1:8"
ButtstockMagpul MOE
CA LegalYes
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