Agency Arms Magazine Release for Glock Gen 3 Pistols incorporates high performance features including the enlarged serrated thumb pad and extended length (3/64" longer than standard). The Magazine Release is constructed from high quality aluminum and features a stylish Agency Arms logo engraving. 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.