ProMag Glock 22/23/27 .40 S&W 50 Round Drum Magazine, Black - DRM-A19

You want it, ProMags probably got it. ProMag auxiliary magazines help keep you armed and ready. Whatever the firearm - be it for recreational "plinking", competition shooting, or law enforcement - ProMag is the one source you can count on.Features:Precise manufacturingLong term reliabilityDurable constructionHigh capacity