The LBE AR-15 Mil-Spec Buffer Tube Kit in Brown (brand part no. MILBUFKT-WB) gives builders every part needed to finish an AR-15 lower’s receiver extension in a single purchase. The kit bundles a six-position mil-spec diameter buffer tube, a carbine-length recoil spring, a standard carbine recoil buffer, a receiver end plate, and a castle nut, matching the earth-tone furniture trend popular on modern builds. LBE Unlimited, a US manufacturer of AR-15 components, engineers this kit to mil-spec dimensions so it works with standard six-position stocks and pistol grips without any fitting issues. It’s an efficient way to complete a build or swap out a worn buffer system while matching a coyote or FDE furniture theme.

Key Specifications

• Includes a six-position mil-spec diameter buffer tube.
• Bundles a carbine-length recoil spring matched to the tube.
• Comes with a standard carbine recoil buffer.
• Includes a receiver end plate and castle nut to complete the assembly.
• Finished in brown to match earth-tone furniture builds.

Frequently Asked Questions

What’s included in this kit? A six-position mil-spec buffer tube, carbine-length spring, carbine buffer, end plate, and castle nut.

Will this match brown or FDE furniture? Yes, this kit is finished in brown to complement earth-tone builds.

Is this compatible with a standard six-position stock? Yes, it’s built to mil-spec dimensions for compatibility with standard six-position stocks.

Buy the LBE AR-15 Mil-Spec Buffer Tube Kit, Brown

Finish your build in one order with a color-matched, mil-spec buffer system. Shop more LBE Unlimited kits in our AR buffer system selection. Order it from our Lubbock, Texas gun shop for fast, direct shipping.