Few people understand modern combat pistol craft like Larry Vickers. After countless hours behind the pistol he understands what will fall short in a gun fight. The one small flaw that could ruin your day is the OEM magazine base pad. It_s undersized and offers nothing should your empty magazine fail to drop free for a number of real world reasons. The VT 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 9