Rosco Bloodline 16″ M4 Barrel: Properly Gassed 4150 CMV for Balanced Performance
Features
- 16″ M4 profile barrel
- Properly sized gas ports to prevent over-gassing
- Reduces premature wear from excessive gas
- 4150 CMV steel construction
- 1:7 twist rate for heavy projectiles
- Carbine-length gas system
- 1/2×28 TPI threaded muzzle
- Nitride finish for durability
- Engineered with military and consumer input
- Optimized for suppressor use
- AR-15 compatible
The Rosco Bloodline barrel solves the over-gassed carbine problem by engineering proper gas port sizing that prevents excessive bolt speed and premature wear. This barrel works well for suppressed builds where most barrels run too hot, duty rifles requiring balanced cycling without beating up parts, and anyone tired of overgassed carbines that destroy brass and parts. The 4150 CMV construction with nitride finish handles hard use while the properly sized gas port delivers reliable function without the violent cycling of standard M4 profiles – bringing modern engineering to your AR-15 with input from actual military end users.
Specifications
- Brand: Rosco Manufacturing
- Model: Bloodline
- MPN: BL-16-M4-556-7-C
- Platform: AR-15
- Caliber: 5.56 NATO
- Barrel Length: 16″
- Profile: M4
- Material: 4150 CMV Steel
- Twist Rate: 1:7
- Gas System: Carbine-Length
- Muzzle Threads: 1/2×28 TPI
- Finish: Nitride
- Color: Black
What’s Included
- 1x Rosco Bloodline 16″ barrel










