Pro mag 18 rnd glock 44 - ProMag Glock 44 .22 LR 18 Round Pistol Magazine

After they get broken in, they run flawlessly. It'll take several times of loading/unloading to get there though. Load to 10 rounds for a range session, then 15 the next time you go. After loading a couple hundred rounds, they run flawlessly loaded to capacity. You also need to load them just like factory Glock 44 mags. Glock is very specific on how to load these. Follow the instructions to the letter. Finally, not a mag issue, per se, but ammo brand is important. I've tested dozens of brands, grains, and hp/round nose variations. Run 40 grain rn cci mini mags. It'll run like any other Glock once you get the hang of it