Guntec USA AR-10 Mil-Spec .308 Buffer Tube Kit w/ Buffer & Spring - Anodized Black

The Guntec USA AR-10 Mil-Spec Buffer Tube Set delivers a complete drop-in solution for assembling or servicing an AR-10 pattern lower receiver chambered in .308 Caliber. Precision-machined from lightweight T6 aluminum (6061 grade), the receiver extension features a six-position adjustable design with laser-engraved position markings for repeatable stock placement across the full range of adjustment.

This all-in-one kit ships with every component needed to complete a mil-spec buffer system: the Mil-Spec buffer tube, a .308 CAR Short Buffer, a coiled buffer spring, an end plate, and a matching castle nut to lock everything securely in place. The complete assembly weighs just 10 oz, keeping your build light without compromising the strength expected from a duty-grade component.

Engineered for direct compatibility with the AR-10, DPMS, and LR-308 platforms, this buffer tube set is finished in anodized black for solid wear and corrosion resistance. Whether you are completing a new build or replacing a worn-out unit, the Guntec USA Mil-Spec buffer tube set offers a reliable, complete solution for your AR-10 build.