Cross Armory Crg+0Meg17Sv Mag Ext Glock 17/22/31 Gen 1-5 Silver Alumn

The Cross Armory magazine extension for Glock 17, 22, and 31 pistols is a straightforward way to add capacity to your carry or duty gun without replacing the mag itself. This silver aluminum extension works across all generations (Gen 1 through Gen 5) of those platforms, fitting cleanly under the baseplate of your existing magazines. It's the kind of practical upgrade that appeals to shooters who want more rounds on tap without the bulk or cost of stocking additional full-capacity magazines.

Magazine extensions sit at the intersection of form and function—they're affordable, reliable, and address a real need for competitive shooters, defensive-minded carriers, and range enthusiasts who just want more trigger time between reloads. The aluminum construction keeps weight minimal while maintaining durability through heavy use. Glock's modular design means this extension plays nicely across a broad platform family, making it a versatile choice for anyone running Gen 1 through Gen 5 frames in 9mm or .40 S&W.

Installation is user-friendly: it seats on your existing magazine baseplate, so there's no gunsmithing or special tools required. Whether you're setting up a new carry setup, refreshing an older Glock, or just looking for an easy capacity bump for the range, this extension delivers a no-fuss solution.

Key Features

• Compatible with Glock 17, 22, and 31 across all generations (Gen 1–Gen 5)
• Silver anodized aluminum construction for durability and corrosion resistance
• Installs on existing magazine baseplates without gunsmithing
• Adds usable capacity without requiring new magazines
• Low-profile design maintains original carry and handling characteristics

Specifications

Frequently Asked Questions

Will this extension work on my Gen 5 Glock 17?

Yes. This extension is designed to fit Glock 17, 22, and 31 pistols across all generations, including Gen 5 frames.

Is installation difficult or do I need a gunsmith?

No gunsmith required. The extension seats directly onto your magazine baseplate—it's a straightforward installation with no special tools.

Does it add significant weight or bulk?

The aluminum construction is lightweight, and the low-profile design maintains the handling and carry characteristics of your original setup.

Can I use this on Glock 22 or 31 magazines?

Yes. This extension is compatible with Glock 17, 22, and 31 platforms, so it works with magazines for all three models.