Shield Arms S15STARTERKITG3 S15 Magazine Gen 3 15rd 9mm Luger Compatible w/Glock 43X/48 Black Steel $51.30
Shield Arms S15ME5INSG3BLK S15 Magazine Gen 3 15rd with +5rd Mag Extension (20rd Total) For Glock 43X/48, Black Nitride Steel $65.69
Shield Arms SAS15ME5RED Magazine Extension 5rd Compatible w/ Shield Arms S15 Magazine, Red Anodized Aluminum $35.99