DPM Smith & Wesson Equalizwe TS/NTS 3.675in Barrel 9mm Mechanical Recoil Reduction System 4 Adjustable Settings. The recoil reduction system works due to the multi spring intricate recoil rod (3 different energetic springs) controls the functionality of the pistol and replaces the stock recoil rod without requiring any modification. The third spring which is contained within the recoil rod controls the movement of the slide so it never rams on the frame. Within the kit are included 4 different in length and strength external springs for the 2 gold coated springs their wire diameter is 0.9mm and are softer during the slide travel than the 2 silver coated springs with wire diameter 0.95mm. As lead the evolution of recoil reduction technology products may change versions (new design with different springs with or without plugs washers etc.) without any prior notice. Specifications for DPM Smith & Wesson Equalizwe TS/NTS 3.675in Barrel 9mm Mechanical Recoil Reduction System: Manufacturer: DPM Fabric/Material: Spring Steel Gun Make: Smith & Wesson Gun Model: Smith & Wesson Equalizer Features of DPM Smith & Wesson Equalizwe TS/NTS 3.675in Barrel 9mm Mechanical Recoil Reduction System Faster follow up shots Improved firing speed Slide and Frame Protection Elimination of jams Significant recoil reduction Better double-tap concentration Better control and greater accuracy Package Contents: DPM Smith & Wesson Equalizwe TS/NTS 3.675in Barrel 9mm Mechanical Recoil Reduction System What firearm models does the manufacturer say DPM Smith & Wesson Equalizwe TS/NTS 3.675in Barrel 9mm Mechanical Recoil Reduction System is compatible with? The manufacturer says that DPM Smith & Wesson Equalizwe TS/NTS 3.675in Barrel 9mm Mechanical Recoil Reduction System is compatible with Smith & Wesson EqualizerDPM MS-S&W/12: Smith & Wesson Equalizwe TS/NTS 3.675in Barrel 9mm Mechanical Recoil Reduction System 4 Adjustable Settings