DPM CZ Shadow 2 Compact Mechanical Recoil Reduction System 4In Barrel. The third spring which is contained within the recoil rod controls the movement of the slide so it never rams on the frame. 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 CZ Shadow 2 Compact Mechanical Recoil Reduction System: Manufacturer: DPM Fabric/Material: Spring Steel Gun Make: CZ Gun Model: CZ Shadow 2 Features of DPM CZ Shadow 2 Compact 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 CZ Shadow 2 Compact Mechanical Recoil Reduction System What firearm models does the manufacturer say DPM CZ Shadow 2 Compact Mechanical Recoil Reduction System is compatible with? The manufacturer says that DPM CZ Shadow 2 Compact Mechanical Recoil Reduction System is compatible with CZ Shadow 2DPM MS-CZ/23: CZ Shadow 2 Compact Mechanical Recoil Reduction System 4In Barrel