Rosco Bloodline 300 Blackout 16" Heavy Barrel
Rosco's 16" heavy-profile 300 Blackout barrel features a 1:8 twist rate, nitride finish, and 5/8x24 threading. Built for suppressed shooting and accuracy with input from SOCOM users and 300 Blackout creators.
Rosco Bloodline 300 Blackout Barrel
The Rosco Bloodline barrel represents a purpose-built solution for shooters who demand suppressor-friendly performance and genuine accuracy. This 16" heavy-profile barrel was developed with direct input from SOCOM end users and some of the original architects of the 300 Blackout cartridge itself.
Design Philosophy
Rosco engineers understood the original mission of the 300 Blackout: delivering reliable, accurate performance in a suppressed platform. Every aspect of this barrel—twist rate, gas port diameter, and overall length—was carefully optimized to fulfill that role.
Specifications
- Caliber: 300 Blackout
- Length: 16 inches
- Profile: Heavy
- Twist Rate: 1:8
- Material: 4150 Chrome Moly Vanadium steel
- Finish: Nitride
- Threading: 5/8x24
- Platform: AR-15 compatible
Performance Characteristics
This barrel excels with both subsonic and supersonic ammunition, though the 16" length makes it particularly well-suited for carbine shooters running full-power loads. The heavy profile provides excellent heat management and harmonic stability, translating to tighter groups and more consistent velocities shot after shot.
Whether you're building a hunting rifle or a dedicated suppressed platform, Rosco's attention to detail ensures you're not leaving performance on the table.
Features
- 4150 cmv steel
- 1:8 twist
- 5/8x24 thread pitch
- nitride finish
- heavy barrel profile
- 16 heavy profile barrel"
- .750 gas block size
- pistol-length gas system
- 1:8 twist rate
- 11 degree barrel crown
- designed for modern carbine usage
