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The KRISS Mag-Ex2 is a smart engineering solution for anyone running a Vector or Glock-compatible 9mm carbine. Instead of designing a new magazine from scratch, KRISS built this around a standard Glock magazine body with a two-piece extension kit that includes an outer sleeve, extended baseplate, and reinforced spring. The result is a 40-round magazine that feeds reliably while keeping the profile clean and purposeful.
The genius here is simplicity. Rather than fight against the proven reliability of factory Glock magazines, KRISS leverages it. Your standard 17-round Glock magazine sits inside a polymer sleeve that extends it by 23 rounds. The baseplate lip anchors the extension to the original mag body, creating a solid connection without welding or permanent modifications. This two-piece design lets you swap back to standard magazines when needed, and it's actually more durable than a monolithic extended mag because there's less stress on any single component.
While the Mag-Ex2 is purpose-built for the KRISS Vector platform, it works with any firearm that accepts Glock 17 magazines. This includes PCC builds, platform-compatible pistols, and mag-well conversion kits for AR-15 PCCs. The polymer construction resists corrosion, the black finish is clean and subtle, and the overall design matches the Vector's aesthetics without looking tacked on. Numbered witness holes help you track rounds at a glance, and the anti-tilt follower keeps rounds feeding straight.
One thing to know: hand-loading a fully extended magazine takes some effort because of spring tension, so consider grabbing a magazine loader if you're running through high-volume sessions. A few loadings will help the springs break in naturally. Most users report flawless feeding after that initial cycle.
It comes completely assembled and ready to use straight out of the box. The magazine, outer sleeve, baseplate, and spring are all pre-installed so there's no assembly required on your end.
Yes. It's built around a factory Glock 17 magazine, so it works with any Glock-compatible platform including pistol-caliber carbines, Glock handguns, and AR-15 magazine-well conversions. Just confirm your firearm accepts standard Glock 17 magazines.
Hand-loading gets noticeably harder toward capacity because of the extended spring's tension. Most people use a magazine loader for convenience, especially when running high-volume training. The springs break in over a few loadings and the process gets slightly easier with use.
Yes. Because the Mag-Ex2 is built on a removable sleeve system rather than a permanent extension, you can swap the original Glock magazine to a standard one and use it independently if you prefer.
| UPC | 811607031294 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | KVA-MX290BL00 |
| Caliber/Gauge | 9mm |
| Capacity | 40 |
| Color | Black |
| Length | 10.1 |
| Package Height | 1.5 |
| Package Width | 5.0 |
| Product Type | Accessory-Magazines |
| Shipping Weight | 0.45 |
| State Restriction (CA) | NO DIRECT SHIP TO CALIFORNIA |
| State Restriction (IL) | NO SALE TO ILLINOIS PICA |
| State Restriction (OR) | NO SALE TO OREGON |
| State Restriction (RI) | NO DIRECT SHIP TO RHODE ISLAND |
| State Restriction (WA) | NO DIRECT SHIP TO WASHINGTON |
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