The Luth-AR 308 Fixed Rifle-Length Buffer Tube Complete Assembly Kit (brand part number BAP-308) completes an AR-10 lower build for shooters who want a traditional, fixed A2-style stock instead of a collapsible carbine stock. The kit includes an A2-length rifle buffer tube, a .308 rifle recoil buffer, and a matching rifle recoil spring, all sized for the heavier recoil impulse of a .308 AR-10. Because it uses the A2 fixed-length pattern, this assembly is compatible with A2 fixed buttstocks rather than adjustable carbine stocks. It is the right choice for builders assembling a classic, fixed-stock AR-10 rifle configuration rather than an adjustable carbine setup.

Key Specifications

• Includes an A2-length rifle buffer tube, sized for fixed-stock AR-10 builds.
• Buffer is a .308-specific rifle recoil buffer, weighted for AR-10 cycling.
• Comes with a matching rifle recoil spring tuned to the buffer weight.
• Compatible with A2 fixed buttstocks, not adjustable carbine stocks.
• Sold as a complete assembly kit for AR-10 rifles.

Frequently Asked Questions

What comes in this kit? An A2-length rifle buffer tube, .308 rifle recoil buffer, and rifle recoil spring.

Will this work with a collapsible carbine stock? No, this is the fixed A2-length configuration, built for A2 fixed buttstocks.

What rifles is this kit built for? AR-10 rifles chambered in .308 using a fixed, rifle-length buffer tube.

Buy the Luth-AR 308 Fixed Rifle-Length Buffer Tube Assembly

Order the Luth-AR 308 fixed buffer tube assembly from our Lubbock, Texas gun shop for fast, insured shipping. See more Luth-AR AR buffer system parts for your AR-10.