The Vickers Tactical Magazine Floor Plates are flared with grooved non-slip scallops for positive finger purchase. Stubborn magazines are easily extracted whether muddy, caked with ice or sand. Great for one handed reloads too. Just hook magazine floor plate under your belt and extract quickly. Molded dimples allow for easy marking and numbering of magazines. Fits Glock magazine calibers 9A-19, .40, .357 SIG, .45 GAP. NOT compatible with early Gen 1 non-metal lined magazines. Is compatible with Gen 5 models 17, 19, 19X, 22, 23, 26, 27, 28, 31, 34, 35, 44, 45.Package of 5. FeaturesTough glass-filled nylon for superior impact resistanceFlared shape with grooved finger scallops offer plenty of gripMolded dimples allow easy marking and numbering of spare magazines 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.