The Luth-AR 308 Carbine Recoil Buffer (brand part number 308-CS-10B) is built for AR-10, LR-308, and SR-25-based platforms running a carbine-length buffer tube. At 3.8 ounces, this buffer is weighted specifically for the heavier recoil impulse of .308-caliber AR builds, helping keep the action cycling smoothly and consistently. It installs directly into a compatible carbine buffer tube with no modifications needed, making it a simple upgrade or replacement part. Builders assembling a new AR-10 lower, or replacing a worn factory buffer, will find this a straightforward, purpose-built option.

Key Specifications

• Weighs 3.8 ounces, matched to .308-caliber recoil impulse.
• Built for AR-10, LR-308, and SR-25-based platforms.
• Requires a carbine-length buffer tube for proper fit.
• Installs with no modifications needed to the lower receiver or buffer tube.

Frequently Asked Questions

What platforms does this buffer fit? AR-10, LR-308, and SR-25-based platforms using a carbine-length buffer tube.

How much does this buffer weigh? 3.8 ounces, weighted for .308-caliber recoil.

Does installation require gunsmithing? No, it installs into a compatible carbine buffer tube with no modifications needed.

Buy the Luth-AR 308 Carbine Recoil Buffer

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