The PMAG 17 GL9 is a 17round Glock 9mm handgun magazine featuring an all polymer construction for flawless reliability and durability over thousands of rounds. High visibility controlled tilt follower stainless steel spring easily removable floor-plate for cleaning paint pen dot matrix for mag marking ridged floor-plate edges for better grip and 17rd indicator windows. Drops free loaded or unloaded. The PMAG 17 GL9 is compatible with all fullsize 9mm Glock handguns as well as compact and subcompact variants with some protrusion below the grip. Note: May not be compatible with other platforms designed for use with Glock magazines due to a wide range of magwell designs and tolerances. Made in USA.