This custom recoil pad is designed exclusively for the Sub2000 Gen 2 (GENERATION 2) and will provide a shooter with a measurable amount of reduced recoil. This recoil pad has been created to provide the shooter an additional 1.25 of LOP length. Also, with this recoil pad installed it provides a better balance to the firearm. Recoil pad with fit both the 9mm and 40cal firearms. The design of this recoil pad provides secure attachment to the firearms buttstock while still allowing easy removal (no tools needed). Absolutely zero modifications or drilling required.