Diamondback DB Barrel 308 Win 18" 1:10 Twist Black Nitride Medium Profile

The Diamondback DB Barrel is an OEM factory replacement 308 Winchester barrel built around the DB10 rifle series and the broader AR-10 platform. Cut from 4150 Chrome Moly Vanadium steel and finished in black nitride, this 18-inch barrel is engineered for long service life and consistent accuracy in field and range use.

It is designed around a rifle-length gas system with a medium-profile contour, pairing a useful weight balance with the rigidity needed for dependable cycling. The 1:10 twist pairs cleanly with the 308 Win cartridge, and the nitride finish - which hardens both the bore and the exterior for improved wear and corrosion resistance - rounds out a barrel built to Diamondback factory specification.

Manufactured in the USA to Diamondback factory specification, this DB Barrel is a direct-fit replacement for DB10 308 Win rifles. Barrel only - does not include bolt, bolt carrier, gas block, handguard, or other components.