The Pachmayr 03850 Polymer Mag Sleeve is a practical adapter that bridges the gap between your full-size Glock magazines and compact pistols. If you run a Glock 19, 23, or 32 but want to use standard Glock 17, 22, or 31 magazines, this polymer sleeve slides over your full-size mag to make it feed reliably in your smaller carry gun. It's the kind of solution that saves you from buying duplicate magazines or swapping platforms when your daily carry gun needs a capacity boost or when you want to run the same ammo type across multiple pistols.

Compact Glocks are excellent EDC pistols, but they sacrifice grip real estate and round count compared to their full-size cousins. A Pachmayr mag sleeve solves both problems at once: the sleeve adds material to the magazine body, enlarging your grip purchase and typically accommodating one or two additional rounds during reload cycles. This makes follow-up shots faster and steadier—especially useful at the range or in a training environment where every shot counts.

The sleeve is straightforward to use: simply slide it over your full-size magazine until it seats, and the polymer construction holds securely without tools or permanent modification. The black finish matches standard Glock aesthetics. Whether you're consolidating your magazine inventory, extending capacity when conditions allow, or standardizing ammunition across a pair of Glocks in different sizes, this is a proven, cost-effective approach that Pachmayr has refined across years of production.

Key Features

• Adapts full-size Glock 17, 22, and 31 magazines for use in compact Glock 19, 23, and 32 pistols
• Increases grip circumference for more comfortable, controllable shooting
• Durable polymer construction with secure fit
• Black finish
• Tool-free installation—simply slides on

Specifications

Brand	Pachmayr
Model	03850
Material	Polymer
Finish	Black
Compatible Full-Size Magazines	Glock 17, 22, 31
Compatible Compact Handguns	Glock 19, 23, 32

Frequently Asked Questions

Will a Pachmayr mag sleeve let me use my full-size Glock magazines in a compact pistol?

Yes. The sleeve adapts full-size Glock 17, 22, and 31 magazines so they feed and seat properly in compact Glock 19, 23, and 32 models.

How do I install the mag sleeve?

Simply slide the polymer sleeve over your full-size magazine until it seats securely. No tools, modifications, or disassembly required.

Does the sleeve add grip size?

Yes. The sleeve increases the grip circumference and body diameter of the magazine, improving handling and control when shooting a compact pistol.

Can I use the same magazine with and without the sleeve?

The sleeve is designed to stay on the magazine. You can remove it if needed, but it's built to remain in place during normal carry and shooting use.