Shop › MAG SHIELD S15 GLK 43X/48 W/+5 EXT MAG SHIELD S15 GLK 43X/48 W/+5 EXT $67.49 Shield Arms Extended Magazine, S15 Gen 3, 9MM, 20 Rounds, Nitride Finish, Black, Fits Glock 43X/48, With +5 Baseplate S15-ME-5INS-G3-BLK Quantity: Add To Cart Added! Shield Arms Extended Magazine, S15 Gen 3, 9MM, 20 Rounds, Nitride Finish, Black, Fits Glock 43X/48, With +5 Baseplate S15-ME-5INS-G3-BLK