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The KRISS MagEx2 is the go-to solution for anyone running a Glock 21 or KRISS Vector looking to maximize magazine capacity without replacing factory magazines. This Alpine White 3-pack gives you enough extensions to outfit all your duty or range magazines with room to spare.
What makes MagEx2 stand out is the engineering behind it. The kit builds on your existing factory G21 magazine body and follower by adding an extended baseplate, outer sleeve, and extended spring all made from lightweight reinforced composites. Installation is straightforward. You take apart your standard 13-round G21 magazine, swap in the MagEx2 components, and reassemble. Within minutes you've got a 30-round magazine that maintains the same reliable feeding and durability you expect from factory Glock magazines.
The real benefit here is extending range time or competition runs without constantly reloading. Whether you're using a KRISS Vector 45, a standard Glock 21, or any Glock-compatible pistol caliber carbine, this kit works across all of them. The reinforced polymer construction keeps added weight minimal, and the three-pack setup means you can keep your carry magazine stock standard while having extended-capacity options ready when you need them.
Assembly takes about five minutes per magazine once you get the feel for it. One thing worth knowing: the extended spring creates significant tension, especially when fully loaded. Hand-loading ammo becomes increasingly difficult as you top off the magazine. For regular use with these higher capacities, a dedicated magazine loader like an UpLULA makes the job much easier and saves your thumbs. The kit includes capacity indicator holes on the extension so you can visually count your rounds without unloading.
Yes, the MagEx2 is specifically designed to work with factory standard G21 magazines from Gen 3 and later. You keep the original magazine body and follower, then install the extended components from the kit. Just note that the kit is compatible with full-size standard-capacity magazines only, not compact or subcompact G21 variants.
Not at all. Assembly is straightforward. You disassemble your factory G21 magazine, replace the baseplate and spring with the extended components from the kit, and reassemble. Most people can do one magazine in about five minutes once they understand the process. No special tools required.
Hand-loading works, but the extended spring creates strong tension that makes it increasingly difficult as you load more rounds. Using a dedicated magazine loader like an UpLULA is highly recommended if you plan to regularly load these extended magazines. It makes the job faster and easier, and saves wear on your hands.
Yes. While the MagEx2 is optimized for KRISS Vector setups, it's fully compatible with standard Glock 21 handguns and any Glock magazine-compatible pistol caliber carbine chambered in .45 ACP. The kit extends whatever platform feeds G21 magazines.
| UPC | 811607032840 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | KVA-MX2K45AP01 |
| Product Type | Magazine Extension |
| Model | |
| Color | Alpine White |
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