“Faxon Firearms 15A58M16NGQ Match Series Gunner 5.56x45mm NATO 16″ Target Crown Steel QPQ Black Nitride 4150 Steel Barrel” has been added to your cart. View cart

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September 16, 2026Diamondback 300P10H50B8R DB Barrel 300 Blackout 10″ Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel
$100.10
Diamondback 300P10H50B8R DB Barrel 300 Blackout 10″ Pistol-Length Black Nitride 4150 Chrome Moly Vanadium Steel
25 in stock
SKU: TSW|148388
Category: AR15 Barrels
Replace your barrel, or finish your build with this 10″ black nitride barrel from Diamondback! Made of 4150 CMV with a pistol-length gas system.
| UPC | 815875019190 |
|---|---|
| Manufacturer | Diamondback Firearms |
| Manufacturer Part Number | DB300P10H50B8-R |
| Length | 10" |
| Model | DB Barrel |
| Rate of Twist | 1:8" |



