The Recover Tactical Compact Picatinny Rail is engineered to fit perfectly on your pistol. The Recover Rail is the most stable rail solution. It features a glass reinforced polymer construction, and will hold up in harsh conditions. No modifications are required, and installation will not damage your pistol.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.