Product Description
The new Glock MCK Mag Extension is made of High Grade/Impact Resistant Polymer with a proprietary base plate system allowing for a much easier installation process. With this mag extension for your MCK, you can effortlessly expand your mag capacity without making any serious modifications to your equipment. Shipped with a new spring, it allows for +5 rounds in the Glock 17 magazine, +4 rounds in the Glock 19 magazine, +4 in Glock 22 magazines, and +3 on magazines for the Glock 23.