KRISS MagEx2 Kit for G21 — 3-Pack, Black

The KRISS MagEx2 Kit is a capacity-extending base plate kit designed for use with factory standard Glock magazines, Gen 3 and later. The kit includes an extended baseplate, an outer sleeve, and an extended spring, all made from reinforced, lightweight composites. It is caliber-specific and available in 9mm, 10mm, and .45ACP and is designed for standard-capacity G17, G20, and G21 magazines for use with KRISS Vector, Glock handguns, and Glock magazine-compatible pistol caliber carbines.

Key Specifications

• Compatible with Glock Gen 3 and later magazines.
• Designed for standard-capacity G17, G20, and G21 magazines.
• Includes extended baseplate, outer sleeve, and extended spring in each kit.
• Constructed from reinforced composites for lightweight durability.
• Available for 9mm, 10mm, and .45ACP calibers.
• When used with standard factory magazines provides overall capacity of 40 rounds (9mm), 33 rounds (10mm), and 30 rounds (.45ACP).
• Color is Black.
• Sold as a 3-pack of MagEx2 kits for multiple magazines.
• Intended for use with KRISS Vector, Glock handguns, and Glock-compatible PCCs.

This MagEx2 Kit gives a practical, durable option for expanding magazine capacity while maintaining reliable feeding with the factory magazine body and follower. Packaged as a three-piece kit and supplied in a 3-pack for multiple magazines, it’s a straightforward solution for operators who prioritize function, compatibility, and a clean fit with their existing Glock-compatible systems.