This is something that airsoft players are hoping that Magpul would allow to be licensed and made for airsoft market, a PMAG for the Glock pistols. The PMAG 17 GL9 is made for such 9mm pistols... "The PMAG 17 GL9 is a 17-round magazine featuring durable polymer construction, paint pen dot-matrix for labeling, tool-less floor plate removal for ease of maintenance, and a visible capacity indicator hole on the body. The PMAG 17 GL9 is compatible with all full-size 9mm Glock handguns, as well as compact and sub-compact variants with some protrusion below the grip."