Kriss Magazine Extension Kit Flat Dark Earth for Glock 17 9mm - 40 Round Capacity

The Kriss Magazine Extension Kit in Flat Dark Earth is a capacity upgrade system designed for Glock 17 9mm magazines. This extension transforms your standard Glock mag into a 40-round magazine, making it an excellent choice for shooters running a Kriss Vector, Glock-compatible pistol caliber carbine, or any platform that accepts Glock magazines. The kit works with Glock Gen 3 and later frames, giving you substantially more rounds per mag without swapping platforms or magazines.

Building on your factory Glock magazine body and follower, the extension kit pairs an extended base plate outer sleeve with a matching extended spring—both molded from reinforced polymer composite. The result is a magazine that maintains reliable feeding while gaining significant capacity. The Flat Dark Earth finish rounds out the package with a color that pairs naturally with modern rifle furniture and gear.

If you shoot 9mm through a Kriss Vector or another Glock mag-fed PCC, this kit solves a real problem: standard capacity runs dry too fast at the range or in a training scenario. At 40 rounds, you'll spend less time reloading and more time on target. The polymer construction keeps weight minimal—important when you're running multiple magazines through a session.

Key Features

• Extends standard Glock 17 9mm magazines to 40-round capacity
• Reinforced polymer composite construction for durability and light weight
• Works with Glock Gen 3 and later magazine platforms
• Compatible with Kriss Vector and Glock magazine-fed pistol caliber carbines
• Flat Dark Earth finish matches modern tactical gear
• Includes extended base plate outer sleeve and extended spring

Specifications

Frequently Asked Questions

Will this work with my Glock 17 or Glock-compatible pistol?

Yes. The kit is designed for Glock 17 magazines and Gen 3 and later frames. It also works with Glock mag-compatible platforms like pistol caliber carbines. You'll need the factory Glock magazine body and follower to complete the assembly.

What capacity do I get with the extension?

The extension increases your Glock 17 9mm magazine from standard capacity to 40 rounds per magazine.

Is this kit compatible with my Kriss Vector?

Yes. The kit is designed specifically for use with the Kriss Vector and other Glock mag-fed platforms. It pairs the extended base plate and spring with your existing Glock magazine body for seamless integration.

What comes in the box?

The kit includes the extended base plate outer sleeve and extended spring. You'll need to source the factory Glock magazine body and follower separately to complete the assembly.