Luth-AR 308 Mil-Spec Carbine Buffer Tube Assembly

This kit provides the components needed to install a Mil-Spec carbine buffer tube recoil system on .308/7.62 AR platforms or to equip a new AR-10 build. The assembly includes a Mil-Spec diameter carbine buffer tube, a 308 carbine recoil buffer, a carbine recoil spring, a receiver end plate, and a castle nut. Finished in a hardcoat anodize on aluminum, the assembly is intended to offer durable function compatible with AR-10-style configurations.

Key Specifications

• The finish is Hardcoat Anodized for corrosion resistance and wear protection.
• Constructed from Aluminum to provide a balance of strength and reduced weight.
• The kit includes buffer, buffer tube, and recoil spring for a complete carbine buffer system.
• Designed to fit AR-10 receivers and compatible .308 platform builds.
• The tube uses a Mil Spec diameter carbine profile.
• The product is a buffer tube complete assembly intended for installation on compatible receivers.
• Features a Mil-Spec style carbine buffer tube profile.
• Intended for AR .308 configurations (.308/7.62 platforms).
• The kit also includes receiver end plate and castle nut required for standard installation.

Engineered for builders and shooters assembling or converting .308/7.62 AR platforms to a carbine buffer system, this complete assembly simplifies installation while using familiar Mil‑Spec dimensions. Its aluminum construction and hardcoat anodized finish deliver a functional, durable solution for those who prefer proven components in AR-10 style configurations.