The Armaspec Stealth Recoil Spring (SRS) Gen 4 is a self-contained, multi-stage drop-in replacement for the standard AR-15 buffer and spring. It keeps the spring from rubbing on the inside of the buffer tube for smooth, quiet cycling, and its second stage cuts felt recoil. The buffer mass stays under constant tension against the bolt carrier.
- Model: SRS Gen 4, Big Bore (BB)
- Type: Self-contained buffer and spring
- Fits: AR-15 buffer tubes
- Weight: 5.7 oz
- Feature: Multi-stage spring reduces felt recoil
- Feature: Quiet, no spring-on-tube rub
- Made in the USA
- Manufacturer part #: ARM253-BB
