Interest to see this new Product for the Glock Firearms. It appears that even Glock owners are finally starting to find some common sense to safety. I do not know all about the device, but it appears to be worth every penny they want from it. If there was NOT a issue, this product would never have come into existence. While this "Gadget is not a complete safety, he is a beginning. If you own a Glock, I cannot imagine that you would NOT want to have this installed by your Gunsmith.