UM Tactical Universal scope mount Glock 19 Gen 3

UM Tactical testing a Gen 3 Glock 19 40cal. with a UM 3 universal sight scope optic mount.

[@Datacorrupter234]

i wana see someone install it before i buy, what if its some rickety pos? id like to see how i locks up

[@gruntspy44]

will this work on a g20?

[@garyv3588]

Visually it looks like shit