KRISS MAGEX2 Kit for Glock 17 – +23-Round Extension, 3-Pack

The KRISS MAGEX2 Kit extends factory Glock 17 magazines by 23 rounds, converting standard 17-round magazines into 40-round capacity units. Designed for range use, competition, or extended shooting sessions, this kit provides a significant capacity increase without requiring a new magazine body. The extension replaces the factory baseplate and spring with KRISS components engineered to maintain reliable feeding under the increased spring tension of a fully loaded extended magazine.

Constructed from reinforced polymer with a matte black finish, the MAGEX2 extension installs without gunsmithing—users disassemble the factory magazine, replace the spring and baseplate with the KRISS parts, and reassemble. The kit includes three complete extension assemblies, each with its own baseplate, extension body, and spring. Installation requires no permanent modification to the original magazine tube, allowing users to revert to factory configuration if desired.

• Part Type: Magazine Extension Kit
• Compatible Firearms: Glock 17 (9mm)
• Capacity Increase: +23 rounds (converts 17-round mag to 40 rounds)
• Material: Reinforced Polymer
• Finish: Matte Black
• Installation: Drop-In (no gunsmithing required)
• Includes: 3 complete extension assemblies (baseplates, extension bodies, springs)