GLOCK OEM Single Magazine Pouch, Fits GLOCK 9/40/357/45GAP, Not Compatible with G42 or G43 Magazines, Ambidextrous, Black Finish 17076 This is a OEM single magazine pouch for Glock 9/40/357/45GAP. It is made from the same highly durable polymer that you have come to depend on. The pouch has an innovative contoured design that allows for magazine retention without the need for any straps giving you greater speed and simplicity.