High-Capacity 50-Round Drum Magazine for Glock .40 S&W - Mag KCI USA

A KCI USA 50-round drum magazine for Glock .40 S&W delivers serious magazine capacity for shooters who want extended trigger time at the range or competition. Built from composite and glass-filled polymer with a clear body so you can see your round count at a glance, this drum magazine combines practical design with reliable feeding through hardened steel inserts and heat-treated chrome silicon wire springs. The load assist lever makes filling all 50 rounds faster and easier than fumbling with standard single-stack mags.

These magazines are purpose-built for Glock pattern .40 S&W platforms—specifically the Glock 22, 23, 24, 27, and 35—and maintain the familiar controls and ergonomics shooters expect. The robust construction keeps feeding consistent through hundreds of rounds. Fair warning: the loaded magazine is substantial (1.5 lbs when full) and is not designed to be drop-free, so you'll want to manually eject it rather than expect gravity to do the work. Stick to full metal jacket ammo; this design doesn't play nice with hollow points.

If you're running high-volume pistol drills, testing a new .40 S&W platform, or just like the idea of swapping mags less often, a 50-round drum takes the tedium out of reloading. The clear polymer body is tough enough for regular use while letting you manage your ammunition supply on the fly.

Key Features

• 50-round capacity for extended range sessions and competition shooting
• Clear polymer construction for easy round-count monitoring
• Hardened steel inserts and heat-treated chrome silicon springs for reliable feeding
• Load assist lever for quick, ergonomic magazine loading
• Compatible with Glock .40 S&W platforms (Models 22, 23, 24, 27, 35)
• Robust composite and glass-filled polymer body

Specifications

Frequently Asked Questions

Will this 50-round drum work with my Glock .40?

Yes, if you own a Glock 22, 23, 24, 27, or 35. These are the .40 S&W Glock models compatible with this KCI USA drum pattern. Double-check your model number before ordering.

What ammunition should I use with this magazine?

This drum is designed for full metal jacket (FMJ) ammunition only. Do not use hollow point rounds—the magazine's internal geometry is not compatible with hollow point feeding.

Is this magazine drop-free?

No. Due to the weight of the loaded magazine (1.5 lbs), it is not designed to drop freely from the pistol. You'll need to manually eject it rather than rely on gravity.

What's included in the box?

You receive the drum magazine itself. The clear polymer body lets you see your ammunition supply, and the load assist lever is built in to make filling easier.