Rosco Manufacturing Bloodline AR-15 Barrel - 16" - 5.56 NATO - Heavy Profile - Carbine-Length - 1:7 Twist

Heavy Contour Built for Heat, Rigidity, and Hard-Use Carbines

Features

• Heavy barrel profile retains additional mass for rigidity and heat management during higher-volume firing
• 5.56 NATO chamber is compatible with both 5.56 NATO and .223 Rem ammunition
• 1:7 twist rate supports a broad range of commonly used 5.56 projectile weights
• Carbine-length gas system provides a conventional operating setup for a 16″ AR-15 barrel
• 4150 CMV construction with a corrosion-resistant nitride finish
• .750″ gas block journal fits compatible AR-15 gas blocks
• 1/2×28 muzzle threads accept compatible 5.56 muzzle devices and suppressor mounts
• 11° barrel crown protects the muzzle and provides a consistent projectile exit
• Barrel is factory engraved “HEAVY” to identify the heavy-profile configuration

The Rosco Bloodline 16″ 5.56 Heavy Barrel is built around a substantial contour for shooters who prioritize rigidity and heat capacity over minimum barrel weight. Its carbine-length gas system, 1:7 twist, and 5.56 NATO chamber keep the operating setup familiar, while the nitride-treated barrel and extension provide a durable finish for regular use.

Specifications

• Brand: Rosco Manufacturing
• Series: Bloodline
• MPN: BL-16-HB-556-7-C
• Caliber: 5.56 NATO
• Ammunition Compatibility: 5.56 NATO / .223 Rem
• Barrel Length: 16″
• Profile: Heavy
• Twist Rate: 1:7
• Gas System: Carbine-length
• Gas Block Diameter: .750″
• Muzzle Thread: 1/2×28
• Crown: 11°
• Barrel Extension Finish: Nitride
• Finish: Nitride
• Weight: 35.76 oz
• Color: Black

What’s Included

• 1x Rosco Bloodline 16″ 5.56 NATO Heavy Barrel