Details
Description
Add our extension kit to your Glock 31/33-round magazine and transform it into a giggle-worthy 41+1 round BIG stick.
This is the same extension as our well-known 170mm +12 but it ships with a crazy-long machine-pistol spring.
Normally we use Delrin for Glock mags, but we did these up in a beautiful blue-anodized aluminum.
By default we'll send you the 9mm kit