Magpul uses proprietary all-polymer construction for flawless shooting and toughness in this PMAG 21 GL9 - Glock 9mm 21-rd. Magazine. Of course, you get all the other great features you'd expect from Magpul PMAG Mags to make your time at the range well spent. 9x19mm Parabellum 21 rounds Durable, lightweight polymer construction High-vis, controlled-tilt follower Easy-to-remove flared floor plate Flared floorplate with ridged edges for enhanced grip Long-life stainless steel spring Dot matrix panels on the bottom of the body for identification marking Drops free loaded or unloaded Indicator windows on both sides at 10, 15 and 21 rounds Meets overall length requirements for a 140mm competition mag Fits all full-size, compact, and sub-compact double-stack Glock 9mm variants with some protrusion below the grip
