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The Kriss MagEx2 Kit gives you a straightforward way to boost the capacity of factory Glock 17 magazines from 17 to 40 rounds. Each kit in this 3-pack includes everything you need: an extended baseplate, an outer sleeve, and a reinforced composite spring. Installation takes seconds without any special tools.
Instead of buying entirely new magazines, the MagEx2 approach lets you upgrade the ones you already have. The kit pairs with your factory Glock magazine body and follower, preserving the reliable feeding characteristics you're used to while extending the overall capacity. The lightweight reinforced composites won't weigh down your setup, and the kit maintains proper aesthetics alongside functionality. This design works across the KRISS Vector platform and any Glock magazine-compatible firearm.
Getting three kits at once means you can upgrade multiple magazines for competition, range sessions, or keep spares ready. The black finish blends with most tactical setups. Note that these kits are caliber-specific, so this 9mm version is designed only for G17 magazines (Gen 3 and later). Hand-loading becomes progressively harder as you fill the magazine due to spring tension, so a magazine loader like the UpLula is highly recommended for faster loading sessions.
This is a kit only, meaning you'll need your existing Glock 17 magazine bodies to use it. The extension works with factory standard magazines from Gen 3 onward and is incompatible with compact, subcompact, and 10-round reduced capacity magazines. Once assembled, you get a total capacity of 40 rounds of 9mm across all three upgraded magazines.
No. This is a kit only that upgrades your existing factory Glock 17 magazines. You'll need standard capacity G17 magazine bodies (Gen 3 or later), but the MagEx2 kit components attach to what you already have. Each kit adds 23 rounds to your current magazine for a total 40-round capacity.
Yes. Hand-loading becomes increasingly difficult the more you fill the magazine due to spring tension. A magazine loader like the UpLula makes loading much faster and easier, especially when you're getting close to the full 40-round capacity.
This 9mm kit is designed only for factory Glock 17 magazines from Gen 3 forward. It won't work with compact G19 magazines, subcompact G26 magazines, reduced capacity 10-round magazines, or aftermarket magazine brands. Stick with factory Glock 17 magazines for reliable function.
Yes. The MagEx2 kit works with standard Glock 17 pistols and any Glock magazine-compatible pistol-caliber carbines. However, it's caliber and magazine-specific, so this 9mm version only fits G17 magazines, regardless of the firearm platform.
| UPC | 811607033038 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | KVAMX2K90BL01 |
| Color | Black |
| Model | |
| Product Type | Magazine Extension |
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