Shield Arms Glock 43X/48 Steel Magazine Release/Catch, Black - G43X-EMR-BLK

Shield Arms steel magazine catch is optimized for Shield Arms S15 magazines. While it will function with plastic OEM magazines, prolonged use may cause increased wear, and OEM mags might not drop freely. Shield Arms advises against using the steel mag catch with plastic OEM magazines, recommending steel-on-steel or plastic-on-plastic pairings.