Product Description
The Diamondback DB Barrel is an OEM-style AR-15 replacement barrel built for reliable performance and long service life. This 16-inch, M4-contour barrel is chambered in 5.56x45mm NATO and made from durable 4150 chrome moly vanadium steel with a black nitride finish for enhanced wear and corrosion resistance. It features M4 feed ramps, a carbine-length gas system, and a 1:8 twist rate from button rifling—making it a versatile option for many common 5.56/.223 loads. The muzzle is threaded 1/2x28 for compatibility with many standard AR-15 muzzle devices.
Product Highlights
- 16-inch M4-contour AR-15 barrel chambered in 5.56x45mm NATO
- 4150 chrome moly vanadium steel construction with black nitride finish
- Button-rifled bore with 1:8 twist rate for broad bullet-weight compatibility
- Carbine-length gas system and M4 feed ramps for dependable cycling and feeding
- 1/2x28 threaded muzzle supports common AR-15 muzzle devices
Specs
- Brand: Diamondback
- Model: DB Barrel
- Manufacturer Part Number: 556C16MF50B8R
- UPC: 815875019060
- Caliber/Chamber: 5.56x45mm NATO (also commonly used with .223 Rem)
- Barrel Length: 16 in
- Profile/Contour: M4
- Material: 4150 Chrome Moly Vanadium Steel
- Finish: Black Nitride
- Rifling: Button rifled
- Twist Rate: 1:8
- Gas System Length: Carbine
- Feed Ramps: M4
- Muzzle Threads: 1/2x28
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