Upgrade your AR-15 platform with the reliable Ruger 91006 AR Carbine Buffer Tube Kit. This factory-original accessory delivers everything needed to complete or replace the rear recoil assembly on compatible AR-15 pattern firearms, providing a solid foundation for mounting an adjustable stock. Complete Carbine Recoil System The Ruger 91006 kit contains a full set of components engineered to Ruger's standards of rugged reliability. It includes the carbine-length receiver extension, carbine buffer, recoil spring, castle nut, and receiver end plate. This all-in-one package simplifies builds and replacements by supplying matched parts in a single box. Key Features and Benefits Genuine Ruger factory part - Ensures consistent quality and performance from a trusted American manufacturer. Carbine-length buffer tube - Designed for standard carbine stocks, offering a compact profile while maintaining proper function. Complete hardware included - Castle nut and end plate allow secure attachment to the lower receiver without sourcing additional components. Black finish - Matches common AR aesthetics for a professional appearance. Specifications Compatibility: AR-15 pattern firearms Buffer system: Carbine length Contents: Receiver extension, carbine buffer, recoil spring, castle nut, receiver end plate Finish: Black Weight: 11.28 oz (product) Dimensions: 13.9 in (L) x 3.7 in (W) x 1.4 in (H) Why Choose the Ruger 91006 Kit Many builders face frustration sourcing individual buffer components that may not match in quality or fit. This Ruger kit addresses that pain point by delivering a pre-matched assembly ready for installation. Professional gunsmith installation is recommended, and users should verify compatibility with their specific lower receiver and stock due to variations across the AR market. Whether completing a new build or refreshing an existing setup, the Ruger 91006 provides dependable performance and peace of mind from a leading firearms manufacturer.