Armaspec Replacement Spring Kit Heavy for SRS Gen 2

The Armaspec Replacement Spring Kit for SRS Gen 2 includes a replacement primary and secondary spring for the Stealth Recoil Spring. Standardssprings will work with SRS-C, SRS-H, SRS-H2 and SRS-H3 Heavy springs will work with the SRS-9, SRS-308 and SRS-BB. Note: The standard and heavy springs are not interchangeable.