DPM SIG Sauer P239DPM Mechanical Recoil Reduction System for Sig Sauer P239 SKU: 1000017 EAN: 5213007220202 MPN Code: MS SI 5 The DPM Mechanical Recoil Reduction System is a direct replacement for the stock recoil rod and does not change the configuration of the gun. **As we 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.** Power Rates