The Rosco Manufacturing Bloodline 10.5″ Barrel in 5.56 NATO is precision-engineered for compact AR builds that demand top-tier performance and rugged reliability. Constructed from high-quality Chrome Moly Vanadium steel and finished with a durable Melonite coating, this barrel is designed to withstand harsh conditions while maintaining consistent accuracy.
Perfect for CQB (Close Quarters Battle) setups, this 10.5″ barrel offers exceptional maneuverability without compromising performance. The included gas block ensures a seamless installation and optimized cycling. Whether you’re building a tactical carbine or an SBR (Short Barreled Rifle), the Bloodline series is the trusted choice for shooters who demand reliability and precision.
Manufacturer Specs:
- Caliber: 5.56 NATO
- Barrel Length: 10.5 inches
- Material: Chrome Moly Vanadium Steel
- Finish: Melonite (QPQ)
- Twist Rate: 1/7
- Gas System: Carbine-Length
- Profile: Government
- Muzzle Thread: 1/2×28
- Includes: Low-profile gas block
- Weight: Approx. 18.9 oz
Key Features:
- Compact 10.5″ design for short-barrel AR builds.
- Melonite finish for enhanced corrosion resistance and durability.
- Includes a low-profile gas block for seamless installation.
- 1/7 twist rate for stabilizing a wide range of bullet weights.
- Ideal for CQB applications and tactical setups.
FAQs:
Q: Is this barrel compatible with suppressors?
A: Yes, the 1/2×28 muzzle threads are compatible with most standard 5.56 NATO suppressors and muzzle devices.
Q: Does the gas block come installed?
A: The gas block is included but not pre-installed, allowing flexibility for your build.
Q: What type of ammo works best with this barrel?
A: The 1/7 twist rate ensures excellent performance with both lightweight and heavier rounds commonly used in 5.56 NATO applications.
Q: Is this barrel suitable for SBR builds?
A: Yes, the 10.5″ length is ideal for short-barreled rifles (SBR) or AR pistols, providing excellent performance in compact setups.





