Luth Ar 308 Carb Bfr Tube Assy Mil

The Luth-AR .308 Carbine Buffer Tube Assembly (Mil-Spec) is a complete bolt-on retrofit kit designed for AR-10 platform rifles chambered in .308 Winchester. This mil-spec carbine buffer tube assembly delivers the recoil management and durability demanded by shooters building or upgrading intermediate rifle systems where compact profile and reliability are non-negotiable.

The kit includes a mil-spec diameter carbine buffer tube, .308-specific carbine recoil buffer, carbine recoil spring, receiver end plate, and castle nut—all components tuned for .308 recoil impulse characteristics. The mil-spec tube diameter ensures compatibility with standard mil-spec stocks and braces across the aftermarket. Proper buffer weighting is critical in .308 systems; the included carbine-weight buffer provides the balance needed to cycle reliably while managing the higher energy signature of the larger cartridge compared to 5.56 platforms.

This assembly is built for operators, competition shooters, and builders who need a complete, ready-to-install solution for AR-10 carbine configurations. Whether building a short-stroke patrol rifle, a precision shooting platform, or upgrading an existing system, the Luth-AR .308 mil-spec carbine buffer tube assembly eliminates the guesswork of sourcing matched components. Straightforward installation into standard mil-spec AR-10 lower receivers makes this kit ideal for gunsmith work or home builds where consistent, field-proven performance matters.

Luth-AR specializes in AR platform ergonomic and recoil management solutions. The .308 carbine buffer tube assembly reflects that focus—engineered specifically for the intermediate rifle segment where mil-spec standardization and proper recoil tuning directly impact shooter control, shot placement, and system longevity.