Lightweight but incredibly strong, our PMAG D-50 GL9 is a highly reliable, 9x19mm Parabellum, 50-round drum magazine optimized for double-stack 9mm GLOCK handguns. The PMAG D-50 GL9 GLOCK boasts many of the proven features of our other 9mm drums, the PMAG D-50 GL9 PCC and the PMAG D-50 EV9. Providing 50-round capacity, the unique drum configuration keeps the height of the magazine manageable, allowing for easier storage. For easy loading, it includes a ratcheting loading lever that removes tension from the internal spring. Easily disassembled for cleaning and featuring an innovative bolt hold-open feature, the D-50 GL9 reliably locks the bolt back on empty when used with firearms designed to lock back on GLOCK pattern magazine followers. Made in the USA.