3 PACK Shield Arms S15 magazine with +5 extension, 20 round capacity, for GLOCK 43X and 48.

Shield Arms, Extended Magazine, S15 Gen 3, 9MM, 20 Rounds, Nitride Finish, Black, For Glock 43X/48, With +5 Baseplate.   These mags require the use of a steel magazine release button.  We stock steel magazine release from Shield Arms as well.