The Recover Tactical Rail is engineered to fit perfectly on the Glock 19 Gen 1 or Gen 2 pistol. The Recover Rail is the most stable rail solution for your Glock 19. It features a glass reinforced polymer construction, and will hold up in harsh conditions. No modifications are required, and installation will not damage your Glock. NoteTo install, place the two halves of the rail together in position on the gun. Secure together with the supplied hardware. 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.