For full-size 9mm, .40 S&W and .357 SIG pistols. Factory spring is 16 lbs. Use a lighter-weight spring with light loads or to soften felt recoil for faster recovery in competition.

Use a heavier-weight spring with “hot” loads or to enhance cycling reliability. NOTE: These springs require a full-length, non-captive guide rod. Each recoil spring, including those in calibration kits, comes with a factory weight striker spring.

Product Code: 13221

For more information visit: 

[3]