Rosco Sp-Bl-115-556-Bcg-Gtc-Ngb-001 Saucepack+Urg

The Rosco Bloodline Sauce Pack + URG is a purpose-built AR-15 component bundle designed for shooters assembling 5.56 NATO duty, defense, or hard-use carbines. Rather than sourcing parts from multiple vendors, this kit pairs Rosco's in-house manufactured Bloodline barrel with a complete ignition system—all engineered to work together seamlessly. If you're building a reliable, no-compromise carbine and want the confidence that every part was selected to maximize collective performance, this bundle eliminates the guesswork and gets you running right out of the box.

Rosco built this kit in response to builder feedback: they identified the core components every carbine needs and hand-picked them from their Bloodline line to ensure synchronization across the system. The result is a cohesive platform where the barrel, bolt carrier group, gas block, and gas tube are all optimized to function as one unit rather than as isolated pieces. This approach is especially valuable for duty and defense builds, where reliability and repeatability matter most. You get Rosco's reputation for hard-use barrels combined with matched Bloodline accessories—all at a combined price that reflects the bundle value.

The kit includes a Bloodline barrel in 5.56 NATO (115-grain configuration per the SKU), a Bloodline bolt carrier group chambered in 5.56, a non-adjustable Bloodline gas block, and a Bloodline gas tube. The gas tube configuration for this specific SKU is pistol length. Together, these components are designed to deliver consistent ignition and reliable cycling without the need for supplemental tuning or part swapping.

Key Features

• Complete ignition system—barrel, BCG, gas block, and gas tube all included
• Factory-matched components engineered to work as a unified platform
• Rosco in-house manufactured Bloodline barrel and accessories
• 5.56 NATO caliber
• Non-adjustable gas block for simplicity and reliability
• Pistol-length gas tube configuration
• Purpose-built for duty, defense, and hard-use applications

Specifications

Frequently Asked Questions

What gas tube length is included in this Sauce Pack?

This specific SKU (Sp-Bl-115-556-Bcg-Gtc-Ngb-001) includes a pistol-length gas tube. Rosco offers other Sauce Pack configurations with carbine, mid-length, and rifle-length gas tubes to match different barrel lengths and build purposes.

Can I use these Bloodline components separately, or are they sold only as a bundle?

While this product is sold as a matched bundle, Rosco manufactures each component (barrel, BCG, gas block, gas tube) as individual items as well. However, the Sauce Pack pricing reflects the value of purchasing them together as a coordinated system.

Is the gas block adjustable?

No. The Bloodline gas block in this kit is non-adjustable, designed for simplified assembly and reliable function with the matched components in the bundle.

What is included in the box?

The Rosco Bloodline Sauce Pack + URG includes a Bloodline 11.5-inch barrel in 5.56 NATO, a Bloodline bolt carrier group (5.56/.300 BLK), a non-adjustable Bloodline gas block, and a Bloodline pistol-length gas tube. No additional gunsmithing or sourcing needed for these core ignition components.