KRISS USA MagEx2 Extension Kit Alpine White for Glock 20/40 Magazines

The KRISS USA MagEx2 Extension Kit in Alpine White gives your Glock 20 and 40 magazines serious capacity gains without replacing the magazine itself. If you run a KRISS Vector, a Glock-compatible PCC, or simply want more rounds downrange before reloading, this kit transforms standard factory magazines into extended-capacity rigs. The MagEx2 combines a reinforced polymer baseplate sleeve with a matched extended spring—both durable and lightweight—that stack together to boost your 10mm and .45 ACP mag capacity while preserving reliable feeding and the factory magazine's proven reliability.

Built for Gen 3 and later Glock magazines, the MagEx2 Kit is caliber-specific, meaning this kit is engineered for your Glock 20 and 40 mags alone. Installation is straightforward: the kit pairs with your existing Glock magazine body and follower, so there's no need to ditch a trusted mag—just extend it. The Alpine White finish complements the aesthetic of a modern PCC or duty setup, though note that unlike KRISS Vector firearms, this kit uses a polymer construction rather than Cerakote, so its appearance will be distinct from the firearm's finish.

Whether you're running a KRISS Vector, a Glock mag-fed carbine, or optimizing a Glock-compatible platform for the range or field, the MagEx2 removes a common constraint: reload frequency. More ammo per magazine means fewer transitions, more trigger time, and less fumbling for spares when it counts.

Key Features

• Extends Glock 20 and 40 magazine capacity with reinforced polymer construction
• Includes both extended baseplate sleeve and extended spring—everything needed to upgrade a standard mag
• Lightweight polymer material reduces fatigue during extended shooting
• Works with Glock Gen 3 and later factory magazines
• Alpine White finish suitable for modern PCC and pistol setups
• Compatible with KRISS Vector, Glock pistols, and Glock magazine-fed carbines

Specifications

Frequently Asked Questions

Will the MagEx2 Kit fit my Glock 20 and 40 magazines?

Yes. The MagEx2 Extension Kit is specifically engineered for Glock 20 and 40 magazines Gen 3 and later. It pairs directly with your factory magazine body and follower, requiring no modification to the magazine itself.

What does the MagEx2 Kit include?

The kit includes an extended baseplate outer sleeve and an extended spring. These two components work together to increase capacity. You'll use your existing Glock magazine body and follower—the kit doesn't replace them, only extends them.

Is this Alpine White kit the same finish as the KRISS Vector?

No. While the Alpine White color is designed to complement the KRISS Vector in Alpine, the kit uses a polymer finish rather than Cerakote, so the appearance will differ from the firearm's finish.

Can I use the MagEx2 Kit with my KRISS Vector or PCC?

Yes. The kit is designed for use with the KRISS Vector and other Glock magazine-compatible pistol-caliber carbines, making it ideal for extending capacity in those platforms.