Description
The Armaspec Stealth Recoil Spring SRS Gen 4 does something most .308 shooters wish their rifle came with from the factory: it takes the harsh, mechanical feel out of the cycle. This is a self-contained, multi-stage unit that drops in to replace both your standard buffer and buffer spring, and it's built specifically for AR10 rifles running a carbine-length buffer tube. It works with both .308 Winchester and 6.5 Creedmoor builds, so whether you're running a range gun, a hunting rig, or a precision setup, it fits right into the plan.
What Sets the SRS Gen 4 Apart
The design keeps the spring from ever touching the inner wall of the buffer tube, which is where that familiar metallic "twang" and scrape come from on a stock setup. Instead of a coil spring rubbing back and forth, the SRS uses a captured multi-stage system that stays under constant tension against the bolt carrier. The result is a noticeably smoother, quieter action that a lot of folks describe as feeling more elastic than mechanical. The second stage of the assembly is what soaks up felt recoil, and people running these on .308 and SR25-pattern rifles have said it makes a heavy-hitting cartridge feel closer to shooting an AR15.
Installing the Armaspec Stealth Recoil Spring
Installation is genuinely a drop-in job. It can be run with or without a buffer retainer, and plenty of builders skip the retainer entirely since it makes takedown and cleaning simpler. One thing worth knowing: the SRS works differently than a standard buffer and spring because it has a stem that travels up through the rear opening of the bolt carrier as it cycles. Most carriers have a rear opening wide enough to clear it, so if you're running a standard AR10 or SR25 carrier you'll be in good shape.
Built and Backed in the USA
This is the Gen 4 version, made in the USA from high-tensile stainless steel. Armaspec cleaned up the earlier design by dropping the o-ring on the weight and refining the end piece and machined cap to cut out potential failure points. It also carries a lifetime warranty, which says a lot about how they stand behind it.
Key Specifications
- Manufacturer: Armaspec
- Model: Stealth Recoil Spring SRS Gen 4
- Manufacturer Part Number: ARM253-AR10
- UPC: 810048492817
- Platform: AR10 / .308
- Caliber Compatibility: .308 Winchester and 6.5 Creedmoor
- Buffer Tube Fit: Carbine-length
- Product Type: Captured buffer and recoil spring
- Material: High-tensile stainless steel
- Color: Stainless / Black
- Equivalent Weight: 5.7 oz
- Complete System Weight: 7.09 oz
- Country of Origin: Made in USA
- Warranty: Lifetime
What’s Included
- Armaspec Stealth Recoil Spring SRS Gen 4 (self-contained buffer and spring assembly)
Frequently Asked Questions
Will the Armaspec SRS Gen 4 fit my AR10?
It's built for AR10 rifles chambered in .308 Winchester or 6.5 Creedmoor that use a carbine-length buffer tube. It's a true drop-in replacement for your standard buffer and spring, so no permanent modifications are needed. Just make sure you're running a carbine-length tube and a standard AR10 or SR25-pattern bolt carrier.
How does the Stealth Recoil Spring reduce recoil and noise?
The SRS is a captured multi-stage design that never lets the spring rub against the inner wall of the buffer tube, which eliminates the metallic twang and scrape you get from a stock setup. The second stage of the assembly absorbs felt recoil, giving the cycle a smoother, more elastic feel. Many .308 owners say it makes their rifle feel closer to an AR15 in the shoulder.
Do I need a buffer retainer to run the SRS Gen 4?
No, it can be installed with or without a buffer retainer. A lot of builders choose to run it without the retainer because it makes takedown and cleaning quicker and easier. The system stays under constant tension against the bolt carrier either way.
What's different about the Gen 4 compared to older versions?
The Gen 4 removes the o-ring that used to sit on the weight and refines the end piece and machined cap on the rod to cut out potential failure points. It's made in the USA from high-tensile stainless steel and backed by a lifetime warranty. These are the current-production units, so you're getting Armaspec's latest revision of the design.






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