Kriss USA Mag-Ex2 Extension Kit for Glock 20/40 Gen3-5, Polymer, Black, Adds 18 Rounds to 10mm Auto 15rd Magazines (33rd Total)
$29.69
$32.99
(You save
$3.30
)
- Capacity-Rounds:
- 33
- Type:
- Accessory
- Firearm Make Fit:
- Glock
- Caliber-Gauge:
- 10mm Auto
- Finish-Color:
- Black
- Model:
- Mag-Ex2
- Material:
- Polymer
- Model Fit:
- G20
The Kriss USA Mag-Ex2 Extension Kit is a capacity booster for shooters running Glock 20 and Glock 40 pistols in 10mm Auto. This kit transforms your factory 15-round Glock magazine into a 33-round powerhouse—adding 18 extra rounds without changing your platform. Built from reinforced polymer composites, it's lighter than traditional steel while holding up to hard use, whether you're training at the range, running a PCC (pistol caliber carbine), or equipping a Kriss Vector.
The extension kit includes three components: an extended baseplate, outer sleeve, and longer spring, all engineered to work seamlessly with your existing Glock magazine body and follower. This modular approach means you keep your factory magazines functional and just swap in the extension hardware when you need the extra rounds. The black polymer finish matches standard Glock aesthetics and won't add unnecessary weight to your setup.
Compatible with Glock Gen 3 through Gen 5 frames, the Mag-Ex2 is purpose-built for the Kriss Vector platform but works just as well in any magazine-compatible 10mm carbine or your duty pistol. If you're serious about 10mm capacity and reliability, this kit delivers without proprietary magazines or tools.
Key Features
- Extends standard 15-round Glock 10mm magazines to 33 rounds total
- Durable reinforced polymer construction—lightweight and tough
- Includes extended baseplate, outer sleeve, and extended spring
- Compatible with Glock 20 and Glock 40 (Gen 3, 4, and 5)
- Works with Kriss Vector and other 10mm mag-compatible carbines
- Black finish integrates with standard Glock aesthetics
Specifications
| Brand | Kriss USA |
| Caliber | 10mm Auto |
| Firearm Compatibility | Glock 20, Glock 40 (Gen 3–5) |
| Base Magazine Capacity | 15 rounds |
| Total Extended Capacity | 33 rounds |
| Capacity Increase | 18 rounds |
| Material | Reinforced polymer composite |
| Finish | Black |
| Included Components | Extended baseplate, outer sleeve, extended spring |
Frequently Asked Questions
Will the Mag-Ex2 work with my Glock 20 or 40?
Yes. This extension kit is designed specifically for Glock 20 and Glock 40 pistols chambered in 10mm Auto. It's compatible with Gen 3, Gen 4, and Gen 5 frames and works with your factory Glock magazine body and follower.
Can I use this in a Kriss Vector or PCC?
Absolutely. The Mag-Ex2 was engineered for the Kriss Vector platform and functions in any magazine-fed 10mm carbine or PCC that accepts Glock-pattern magazines.
What's included in the kit?
The kit contains three pieces: an extended baseplate, an outer sleeve, and an extended spring. You combine these with your existing Glock magazine body and follower to assemble the extended magazine.
How much weight does the extension add?
The Mag-Ex2 is constructed from reinforced polymer composites, which are lightweight compared to steel. Exact weight specifications are not provided; contact Bosque Outdoors for details if weight is critical to your setup.
