Rosco K9 Sauce Pack — 12.5 in 5.56 NATO

The Rosco Sauce Pack bundles were created after direct customer requests to provide the key components needed for carbine and pistol builds. Each kit contains hand-picked parts intended to work together and deliver reliable performance out of the box. Components are designed to synchronize across Rosco Bloodline accessories and Rosco’s in-house barrels for consistent integration.

Key Specifications

• The model is K9.
• The caliber is .223 Rem / 5.56 NATO.
• The barrel length is 12.5 inches.
• The thread pattern is 1/2″x28.
• The finish is Nitride.
• The fit is compatible with AR-15.
• The product type is Barrel.
• The exterior color is Black.
• The barrel description is Patrol Length.

Built to simplify parts selection and reduce integration guesswork, the Sauce Pack provides a cohesive set of Rosco components suited for AR-15 carbine and pistol projects. Its matched parts streamline assembly and help ensure consistent, ready-to-install performance.