Diamondback Firearms OEM Replacement Barrel Diamondback DB10 6.5mm Creedmoor 20in Medium Profile Rifle-Length 1-8 Twist 5/8 x 24 Thread Fluted SS Bead. Made of 4150 CMV with a rifle-length gas system. Specifications for Diamondback Firearms OEM Replacement 6.5mm Creedmoor Rifle-Length Medium Profile Barrel: Manufacturer: Diamondback Firearms Caliber: 6.5mm Creedmoor Barrel Profile: Medium Gas System Length: Rifle Length Threads per Inch: 5/8x24 Barrel Twist Rate: 1-8 Gun Make: Diamondback Package Contents: Diamondback Firearms OEM Replacement 6.5mm Creedmoor Rifle-Length Medium Profile Barrel What firearm models does the manufacturer say Diamondback Firearms OEM Replacement 6.5mm Creedmoor Rifle-Length Medium Profile Barrel is compatible with? The manufacturer says that Diamondback Firearms OEM Replacement 6.5mm Creedmoor Rifle-Length Medium Profile Barrel is compatible with Diamondback DB10 M5Diamondback Firearms 65CR20M416SS8FR: OEM Replacement Barrel Diamondback DB10 6.5mm Creedmoor 20in Medium Profile Rifle-Length 1-8 Twist 5/8 x 24 Thread Fluted SS Bead Blast