The Strike Magazine for GLOCK (9mm) is a high-strength impact resistant custom blended SI Polymer Extreme double-stack pistol mag that includes a translucent body for quick visibility of ammo and a specially selected spring for added reliability. The translucent magazine body is designed with strategically placed textured and non-textured surfaces. Textured where its needed to reduce the shine of the brass and add positive feel, non-textured at one side for ultra-clear visibility of round count and whats going on inside. Not only is the mag body translucent, there are also corner round count cuts to give you alternative angles to see how many you got left for the fight. Paintable triangle markers at the top of mag body to help identify the magazine is in the correct direction when reloading. Magazine release cuts are designed on both sides of the SI mag and is compatible with right, left and ambidextrous mag release setups found on factory GLOCK GEN3-GEN5 frames. The Strike Magazine for GLOCK has a built-in hook slot specifically for the SI Extended Magazine Plate (EMP) steel locking plate for an added extra security when increasing capacity but the baseplate included also has standout features. Side cuts on the baseplate provides easier gripping. ID markers at the bottom of the baseplate allow you to custom mark your mags and also make sure nobody goes home with your stuff. Along with the side cuts, the baseplate also has an added front lip for an increased footprint to help with the standing of the mag to give it a little balance. The included baseplate is a tool-less disassembly design for quick and easy removal with a simply push using your finger nail.