Diamondback Firearms .300 Blackout AR-15 Barrel - Nitride - 10.5"

Manufactured by Diamondback Firearms
SKU: DBB300P105M50B8
MPN: DBB300P105M50B8
Manufactured by Diamondback Firearms
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$89.99 $100.07

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The National Firearms Act regulates the configurations of some firearms assembled with barrels under 16” long. Know the NFA laws in your state before purchasing this item.

The Diamondback Firearms 300 Blackout AR-15 Pistol Barrel is machined in house on state-of-the-art CNC machines and are thoroughly inspected at multiple stages of the build process to ensure quality. This 10.5” barrel is machined from 4150 Chrome Moly Vanadium Steel and features 5R rifling to ensure consistent accuracy and has a 1:8 twist rate. The pistol length gas system is optimal for reliability with .300 BLK. It is threaded 5/8x24 and features an 11 degree target crown. The final process is a salt bath Nitride finish for an added layer of protection.

  • 10.5” barrel chambered in .300 BLK
  • Machined from 4150 CMV steel
  • Salt Bath Nitride finish
  • Pistol length gas system
  • 1:8 twist rate
  • Button Rifled 6-Groove Bore
  • 11 degree target crown
  • Threaded 5/8x24
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Barrel CoatingSalt Bath Nitride
Barrel ContourHeavy
Barrel Length10.5
Barrel LiningSalt Bath Nitride
Barrel Material4150 Chrome Moly Steel
BrandDiamondback Firearms
Caliber Gauge300 Blackout
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthPistol
Thread Pattern5/8 X 24
Twist Rate1:8

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