Features: Compatible Firearms: Glock 17 Caliber: 9mm Capacity: 15 rounds Coating: Anti-Friction Follower: High visibility Green, High-impact polymer Tube: Heat treated carbon steel Spring: High tensile music wire Floorplate: Shrouded high-impact polymer YOU DO NOT NEED TO REPLACE YOUR MAGAZINE CATCH Standard Glock replacement floorplates will not work with this magazine This magazine is not compatible with the Glock 19X pistol or the Stealth Arms Platypus This magazine will not work with funneled magazine guides