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Anyone who's shot a .308 or 6.5 Creedmoor AR-10 knows the platform kicks harder and rattles louder than its little brother. The Armaspec SRS Buffer Kit AR-10 Gen 4 is built to tame both. Instead of just handing you a standard buffer and spring, this kit centers on Armaspec's Stealth Recoil Spring, a self-contained multi-stage unit that drops right in and takes the harshness out of the cycle. You get a mil-spec 7075-T6 aluminum 6-position buffer tube, a steel castle nut and end plate, and the SRS Gen 4 system all in one box, so you have everything needed to mount a stock and finish your lower.
The magic here is in how the Stealth Recoil Spring works. Rather than letting a coiled spring scrape against the inside of the tube, the SRS keeps the spring off the tube walls for a smoother, quieter action and a second stage that cuts down felt recoil. The buffer mass stays under constant tension against the bolt carrier, which makes the whole cycle feel more consistent and controlled. Folks running these on 6.5 Creedmoor and .308 builds often describe the difference as their big-bore rifle suddenly shooting soft like an AR-15, with less muzzle flip and quicker follow-up shots.
Gen 4 is where Armaspec cleaned up the design for durability. They dropped the O-ring on the weight, swapped the old screw for a roll pin across the polymer end piece, machined the cap onto the rod, and replaced the snap ring with a washer. That's fewer places for things to go wrong over a long round count. The .308 model carries a 5.7-ounce equivalent buffer weight tuned for the AR-10, and installation is genuinely drop-in for most mil-spec receivers.
One thing worth knowing: the SRS cycles differently than a traditional buffer, using a stem that travels up through the bolt carrier. Most carriers with a rear opening over .60 inches will run it without issue. It's made in the USA and backed by Armaspec's lifetime warranty.
It's compatible with most mil-spec AR-10 pattern receivers and installs as a drop-in kit. The one thing to check is your bolt carrier, since the SRS uses a stem that travels up through the carrier during the cycle. Most carriers have a rear opening over .60 inches and will run it fine, but a small number of non-standard carriers with a smaller opening won't work.
Yes. The multi-stage design keeps the spring off the tube walls and uses a second stage to soak up felt recoil, which makes a real difference on hard-kicking cartridges like .308 and 6.5 Creedmoor. Many owners say it makes their AR-10 shoot noticeably softer and quieter, with less muzzle flip and faster follow-up shots.
Gen 4 removed the O-ring on the weight and reworked a few parts for better durability. Armaspec switched to a roll pin across the polymer end piece, machined the cap directly onto the rod, and replaced the snap ring with a washer. The goal was to eliminate potential failure points so the system holds up over a long round count.
It's a complete assembly. You get the 6-position 7075-T6 buffer tube, steel castle nut, steel end plate, and the SRS Gen 4 recoil system, so you have everything needed to mount a stock onto your AR-10 lower. You'll just need your buttstock and basic install tools.
| UPC | 810048492893 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | ARM263-AR10 |
| Color | Black |
| Model | |
| Product Type | Buffer Tube Complete Assembly |
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