The Rosco Manufacturing BL-075-HB-300BLK-5-P Bloodline 300 Blackout 7.50" Nitride 4150 CMV Barrel is a compact, purpose-built barrel engineered for short-barreled rifles and pistols that run suppressed. Built from durable 4150 CMV steel with a corrosion-resistant nitride treatment, this 7.5-inch barrel balances maneuverability with dependable ballistic performance, and features a threaded muzzle ready for your preferred suppressor or muzzle device.

Designed specifically around the 300 AAC Blackout cartridge, this Bloodline barrel uses a fast 1:5 twist to stabilize a wide range of subsonic and supersonic loads, making it well suited for personal protection builds, range use, and training-focused PDW configurations. Shooters looking for a compact, reliable 300 Blackout platform will appreciate Rosco’s attention to detail and consistent manufacturing quality.

Key Features:

• Manufacturer: Rosco Manufacturing
• Model: Bloodline
• Caliber: .300 AAC Blackout
• Barrel Length: 7.50"
• Material: 4150 CMV Steel
• Twist Rate: 1:5"
• Thread Pattern: 5/8"x24
• Finish: Nitride