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The ARMASPEC Stealth Recoil Spring SRS Carbine Gen 4 is a self-contained, multi-stage unit that drops straight into your AR-15 in place of the standard buffer and spring. What sets it apart is the design that keeps the spring from ever touching the inner wall of your buffer tube, so you lose that annoying metallic twang that most stock carbines make every time the action cycles. It runs a carbine-equivalent 3.3 oz weight, keeping constant tension against the bolt carrier for a cleaner, more consistent feel behind the trigger.
Installation is about as simple as it gets. It's a genuine drop-in swap, so you don't need any real gunsmithing chops to get it running. The SRS can be installed with or without the buffer retainer, and a lot of folks actually leave the retainer out for easier maintenance down the road. The unit ships with red Loctite on the front metal stop and blue Loctite on the bottom bumper, and it's worth re-checking those screws with a 3/32 hex key whenever you're doing routine cleaning.
Beyond the noise reduction, the multi-stage spring gives you a softer, more elastic recoil impulse instead of the sharp mechanical slap you get from a traditional buffer spring. Guys running suppressors tend to notice the difference most, since the action noise becomes a lot more obvious when the muzzle blast is tamed. Off a bench or during quick follow-up drills, that smoother cycling helps you settle back onto the sights faster.
The Gen 4 version cleans up a few things from earlier models. Armaspec removed the o-ring from the weight, machined the cap onto the rod, and swapped in a more durable end-piece fastener to trim potential failure points. It's built in the USA and backed by Armaspec's lifetime warranty. One thing to double-check before ordering: most bolt carriers have a rear opening over .60 inches, but a small handful of aftermarket carriers come in under that and won't work with the SRS.
It's built for AR-15 platforms running a standard carbine-length buffer tube, and it drops right in where your existing buffer and spring live. Just confirm your bolt carrier has a rear opening larger than .60 inches, since a small number of aftermarket carriers measure under that and won't work with the SRS. Beyond that check, it's a straightforward swap.
Yes. Because the spring never rubs against the inner wall of the buffer tube, the metallic twang you normally hear when the action cycles is gone. Users running suppressed setups tend to appreciate this the most, since the action noise stands out more once the muzzle blast is quieted down.
You can run it with or without the buffer retainer. Many people leave the retainer out because it makes takedown and maintenance easier, and the unit keeps constant tension on the bolt carrier either way. It's a nice bit of flexibility, especially on a fresh build.
The Gen 4 dropped the o-ring on the weight, added a machined cap on the rod, and updated the end-piece fastener to remove potential failure points. These are durability-focused tweaks meant to keep the unit running clean over the long haul. It's still made in the USA and carries Armaspec's lifetime warranty.
| UPC | 810048492688 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | ARM253-C |
| Color | Black |
| Length | 10.9500 |
| Model | |
| Product Type | Buffer |
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