True Precision Recoil Spring Tuning Kit Recoil Spring For Compensated/Suppressed Ruger RXM Black. 1" with this True Precision recoil spring tuning kit. Made from high-strength chrome silicon these springs deliver consistent long-lasting performance. The kit includes multiple spring weights to help you fine-tune your setup for reliable cycling and reduced recoil across various conditions. Specifications for True Precision Recoil Spring Tuning Kit Recoil Spring For Compensated/Suppressed: Manufacturer: True Precision Color: Black Finish: Black Fabric/Material: Chrome Silicon Additional Features: Spring Handle Color: Black Features of True Precision Recoil Spring Tuning Kit Recoil Spring For Compensated/Suppressed: Designed for Sig Sauer P365 P365 SAS and Similar Models with 3.1 Slide" Package Contents: True Precision Recoil Spring Tuning Kit Recoil Spring For Compensated/Suppressed What firearm models does the manufacturer say True Precision Recoil Spring Tuning Kit Recoil Spring For Compensated/Suppressed is compatible with? The manufacturer says that True Precision Recoil Spring Tuning Kit Recoil Spring For Compensated/Suppressed is compatible with SIG Sauer P365 Glock 43 Glock 43X Glock 48