10” barrel chambered in 5.56 NATO

Machined from 4150 CMV steel

Salt Bath Nitride finish

Carbine length gas system

1:8 twist rate

5R rifling



11 degree target crown

Threaded 1/2x28

The Diamondback Firearms 5.56 NATO AR-15 Carbine 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” barrel is machined from 4150 Chrome Moly Vanadium Steel and is 5R rifled to ensure consistent accuracy and has a 1:8 twist rate. The carbine length gas system is optimal for reliability with a short 5.56 barrel. 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.