DPM SIG Sauer P220 Nitron & Legion Full-Size 4.4" BarrelDPM Mechanical Recoil Reduction System for Sig Sauer P220 Nitron & Legion Full Size 4. 4" Barrel . 45ACP . 38 Super SKU: 1000013 EAN: 5213007220165 MPN Code: MS SI 1 The DPM Mechanical Recoil Reduction System is a direct replacement for the stock recoil rod and does not change the configuration of the pistol. The spring plug must always be installed when the DPM Recoil Rod and springs are used. The external springs are different in length, the long