Magpul GL Enhanced Magazine Well - Glock G17 Gen4840815117537 The Magpul GL Enhanced Magazine Well is designed to enhance and ensure positive magazine insertion for GLOCK pistols. Sleek, ergonomic features ensure minimal printing under clothing for excellent concealment. Optimized for use with standard capacity GLOCK factory magazines, Magpul GL magazines, and a variety of aftermarket floorplates and extensions. Features: Compatible with the following GLOCK Gen4 pistols: G17, G22, G31, G34, G35, and