This has been designed to add a grip to a Glock 21 magazine, without adding capacity. In certain states where your magazine capacity is limited by law this can be added to put a larger grip or give your pistol or PCC a better strip grip, and better look.
This base pads has color fill donts on the base for easy cusomization for easy recognition.
The short side of this bas pad measures 2.4" and is angle to stand the magazine straight up.
For a larger version check here - Glock 17 Medium
Recommended Black Professional Plastic
for rugged use.