Luth-AR 308 / 7.62 Carbine 3.8 Ounce Buffer
The Luth-AR 308/7.62 Lightweight Carbine Buffer is a drop-in recoil buffer designed for AR-10, LR-308, and SR-25 rifle platforms running a carbine buffer tube. At just 3.8 oz, this complete assembly comes ready to install—no gunsmithing or modifications required. If you're building or upgrading a .308 AR-10 carbine, this buffer absorbs bolt carrier group energy to reduce felt recoil and muzzle rise, making follow-up shots faster and more controllable whether you're at the range or in the field.
Recoil management matters in a modern rifle platform, especially when you're running a smaller, lighter package. The Luth-AR carbine buffer works within your existing buffer tube to dampen impact energy, which translates to less fatigue over a long shooting session and better sight picture recovery between rounds. Because it's a complete assembly with all necessary components included, there's no hunting for springs, weights, or compatibility parts—just pull it out of the box and swap it in.
If you're finalizing a new .308 AR-10 build or refreshing the recoil management on an existing rifle, this lightweight buffer keeps your setup nimble without sacrificing performance. The minimal weight penalty makes it a practical choice for hunters, competition shooters, and anyone who values both control and handling.
Key Features
- Complete assembly—includes all recoil buffer components
- Drop-in installation, no modifications needed
- Lightweight design at 3.8 oz
- Compatible with AR-10, LR-308, and SR-25 carbine buffer tube platforms
Specifications
| Weight | 3.8 oz (0.19 lbs) |
| Dimensions | 2.65 × 2.75 × 1.00 in |
| Brand | Luth-AR |
| MPN | 308-CS-10B |
| UPC | 859819007294 |
Frequently Asked Questions
Will this buffer fit my AR-10 carbine?
Yes, the Luth-AR 308/7.62 Lightweight Carbine Buffer is designed for AR-10, LR-308, and SR-25 platforms using a carbine buffer tube. It's a drop-in part that requires no modifications.
What's included in the box?
This is a complete assembly with all necessary recoil buffer components included, so you have everything needed to install it into your rifle.
How much does it weigh?
The buffer weighs 3.8 oz, keeping your rifle setup lightweight and easy to handle.
Do I need a gunsmith to install this?
No. This is a drop-in part with no gunsmithing or modifications required. Simply swap out your existing buffer.

