The GLOCK 43X/48 Slimline models have proven to be one of the most popular EDC pistols in America. End-users have voted with their wallets, and the G43X/48 is one of the most prolific self-defense choices to date. That said, aftermarket magazines with increased capacity became the mandatory accessory to have. After years of watching, GLOCK has delivered their OEM 15 Round capacity steel magazine to an awaiting market.