Bought it for zev tech oz9 (gen3 glock compatible)* - Advantage Arms Glock 17-22 MOD-CA Conversion Caliber

This can fit a zev tech oz9 using a gen3 glock 17 version of the conversion kit, but it requires some minor sanding and cutting of some excess plastic in the plastic magazine well on the magazine. Remove: the two bumps on the back of the magazine. Then remove a small amout of plastic in the magazine release cut outs (ONLY on the LOWER part OF MAGAZINE RELEASE CUT OUTS ON THE MAGAZINE). Removing any plastic on the upper portion of the cut out will cause the magazine to become unusable as it will jam due to loose magazine to gun fitment. Cutting some of the lower magazine well cut out on the magazine will allow the locking mechanism on the zev tech oz9 to hold the magazine in place.