DPM Mechanical Recoil Reduction System for Glock 43 - 43X - 48 Soft Version The DPM Mechanical Recoil Reduction System is designed for Glock 43 - 43X - 48 pistols with compensators and silencers that require lighter recoil impact and it can serve low power ammo too. Important Notice: Always install only 1 washer of the provided 2.  The external springs are different in length, the longer spring is heavier than the shorter ones, so the user can fine tune the pistol to his/hers personal standards. From the above effect the slide stops smoothly on the frame and offer’s less recoil. The kit includes 1 DPM Recoil Mechanism, 3 External Springs and 2 Stainless Steel Washers (1 spare). Video Installation Instructions  Important Notice: Always install only 1 washer of the provided 2. **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 Slide on the battery (idle position) Short Spring: 7 lbs Medium Spring: 7.5 lbs  Long Spring:  8.1 lbs Total power (slide full open position): 16 lbs (approx.) Overall Advantages   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 Lifetime Warranty.  For changes to features, like comp set-up, threaded barrels, slide conversions etc., contact us via email at info@dpmsystems.com before placing your order. In some cases, we need to determine whether a custom product is required. Millions of our patented products are in service to military, law enforcement, sports and civilian firearms around the world. How it works:    DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.