The Promag GLK-A23 is a 28-round magazine designed to fit Glock 43X and Glock 48 handguns chambered in 9mm. The magazine is constructed from steel and features a blued finish, giving it a black appearance. It's intended to provide Glock 43X and Glock 48 owners with an extended magazine capacity compared to the standard magazines that come with the handguns.
Promag is a company known for producing aftermarket magazines and accessories for various firearms, including handguns. The GLK-A23 magazine aims to enhance the capacity and functionality of Glock 43X and Glock 48 pistols.