The Rosco Manufacturing Bloodline 16″ 5.56 NATO heavy carbine barrel is engineered for demanding duty cycles and sustained use. It pairs a heavy contour with a Nitride finish on 4150 CMV steel to prioritize durability and corrosion resistance. Designed for carbine-length gas systems, the barrel suits patrol carbines, suppressed builds, and hard-use range platforms. Specifications focus on practical performance, longevity, and compatibility with common AR-15 carbine components.
Key Specifications
- Chambered for .223 REM/5.56 NATO.
- Barrel length is 16″.
- Finish is Nitride.
- Contour is a Heavy profile.
- Rate of twist is 1:7.
- Gas system length is Carbine.
- Muzzle threads are 1/2-28.
- Barrel weight is 1.5 lbs.
- Material is 4150 CMV.
- Color is Black.
Built to serve as a durable foundation for a variety of carbine builds, the Bloodline barrel combines robust materials and practical features for reliable real-world performance. Its heavy contour and Nitride treatment help manage heat and wear during extended use, while the 1:7 twist accommodates a broad range of bullet weights. Expect a stable, long-lasting platform suited to demanding duty and precision-oriented carbine setups.
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