Cross Armory Crg+0Meg17Bk Mag Ext Glock 17/22/31 Gen 1-5 Black Alumn

The Cross Armory magazine extension for Glock 17, 22, and 31 is a straightforward way to add capacity to your duty, competition, or home-defense pistol. Built from aluminum and finished in black, this extension fits all generations of these models—Gen 1 through Gen 5—so it works whether your Glock is a veteran shooter or fresh out of the box. It's the kind of practical upgrade that costs nothing in terms of reliability but gives you more rounds on tap when it counts.

Magazine extensions appeal to shooters across disciplines: competitive IPSC and IDPA shooters run them for stage capacity, law enforcement and armed citizens value the extra rounds for defensive readiness, and range enthusiasts simply prefer more trigger time between reloads. The aluminum construction keeps weight minimal while delivering the durability you expect from a fighting pistol accessory. Installation is straightforward—no gunsmithing required.

Cross Armory has built a solid reputation among shooters who value no-nonsense gear that does the job without fanfare. This extension is that kind of product: proven, compatible across a wide span of Glock gens, and reliable enough to trust in whatever role your pistol plays.

Key Features

• Fits Glock 17, 22, and 31 across all generations (Gen 1–5)
• Aluminum construction for durability and light weight
• Black anodized finish
• Simple installation without gunsmithing

Specifications

Frequently Asked Questions

Will this extension fit my Gen 5 Glock 17?

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

Does this work on Glock 22 and 31?

Yes, the extension is compatible with both the Glock 22 (.40 S&W) and Glock 31 (.357 SIG) in addition to the Glock 17 (9mm).

Do I need a gunsmith to install this?

No. This is a straightforward accessory that installs without gunsmithing.