Diamondback Firearms 5.56 NATO AR-15 Barrel - Carbine-Length - M4 Profile - 16"

Manufactured by Diamondback Firearms
SKU: DBB556C16MF50B7
MPN: DBB556C16MF50B7
Manufactured by Diamondback Firearms
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$89.99 $100.07

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The Diamondback Firearms 5.56 NATO AR-15 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 16” barrel is machined from 4150 Chrome Moly Vanadium Steel and is 6 groove button rifled to ensure consistent accuracy and has a 1:7 twist rate. The mid-length gas system is optimal for reliability and smooth cycling. It is threaded 1/2x28 and features an 11-degree target crown. The final process is a salt bath Nitride finish for an added layer of protection.


  • 16” barrel chambered in 5.56 NATO
  • Machined from 4150 CMV steel
  • Salt Bath Nitride finish
  • Carbine-length gas system
  • 1:7 twist rate
  • 6 groove button rifled
  • 11-degree target crown
  • Threaded 1/2x28
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Barrel CoatingSalt Bath Nitride
Barrel ContourM4
Barrel Length16
Barrel LiningSalt Bath Nitride
Barrel Material4150 Chrome Moly Steel
BrandDiamondback Firearms
Caliber Gauge5.56 NATO
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthCarbine
Thread Pattern1/2 X 28
Twist Rate1:7

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