Armaspec Stealth Recoil Spring SRS-H2 Gen 4 4.7 oz AR-15 SS/Black Drop-In

The Armaspec Stealth Recoil Spring (SRS) is a self-contained multi-stage drop-in replacement for the standard buffer and spring in your AR-15. Designed for use with a carbine-length buffer tube, the H2 (4.7 oz equivalent) configuration is a popular choice for shooters running carbine setups who want a heavier buffer weight for smoother cycling and reduced felt recoil.

The captured multi-stage design keeps the spring compressed as a single assembly, so the spring never launches out of the receiver during disassembly. Installation requires no modifications - the unit drops straight into a mil-spec carbine tube. This Gen 4 version refines the original by removing the o-ring on the weight for improved long-term reliability. Built around a high-carbon steel spring and rod assembly with a stainless steel / black finish, the SRS measures 7.18 in overall and weighs approximately 7.4 oz as a complete unit.