The Diamondback 300 Blackout 10.5 Inch Medium Profile Barrel (DB300P10.5M50B8R) is engineered for AR-15 platform builders. This 10.5-inch barrel is chambered in .300 AAC Blackout and features a medium profile contour with a 1:8″ rate of twist, designed to cycle both subsonic and supersonic ammunition reliably and accurately.
The barrel is finished in Black Melonite for enhanced corrosion resistance and durability. The 1:8″ twist rate stabilizes projectiles across the typical weight range for this caliber, making it suited for both suppressed and unsuppressed shooting applications.
Manufactured by Diamondback Firearms, the medium profile design balances weight and strength, making it suitable for AR-15 builders seeking reliable performance without excessive barrel weight.
