Glock Magazine Catch 9mm Slim, 6 Round Magazines for G43Replacement magazine catch 9mm Slim for the Glock G43 pistol. It is a reversible design, allowing use by both righthanded and lefthanded shooters, and provides reliable magazine retention and release. Its intended as a directfit replacement for worn or damaged parts, maintaining factory ergonomics and function on Glock G43 series pistols. Meant to be installed on 6 round magazines. Specifications Caliber: 9 mm Material: Polymer Finish Color: Black