A magazine release helps reduce change-out times between magazines, and a grip plug prevents debris from entering your trigger housing, ensuring smooth, consistent operation. Many of our aftermarket Glock 43 & 43X accessories and parts can be customized with laser-engraved graphics and different colors for a personalized look. May 15, 2019 · Because of the reversible magazine release button feature, Glock also designed the magazines to have notches on both sides. ... GLOCK GEN 4 PROBLEMS. ... Glock had to reshape the slide’s ...