This is a Kriss Gen 2 MagEx .45 ACP Vector/Glock 21 Magazine Extension Kit ONLY

These MagEx extension kits are made by Kriss USA and designed for use with factory Glock 21 magazines—giving you 17 extra rounds of hard-hitting .45 ACP as fast as you can squeeze the trigger.

Crafted from durable polymer with witness holes for each round, this extension installs tool-free in minutes, sliding on between the magazine and baseplate, with an upgraded spring for a full 30-round capacity.

Magazine Extension Kit ONLY, Glock 21 magazines sold separately. Replaces the Gen 1 25-round extension.

Double the capacity of your standard Glock magazines in a matter of minutes with the Kriss MagEx Extension Kit!