... slapping, no. But adding an external smartlink usually involves a bit more than sticking it on top and away you go. It takes a bit of time to hook up connectors, put in place the fibroids to be able to automatically ratchet the slide, etc. Because even if it's external, you still can do all that sort of thing (drop the clip, put the safety on/off, chamber/eject a round, etc.), which means all those parts have to be in place. Don't take my description to be license for you to say 'oh, I have an external smartlink, mine can't be bricked' without your external smartlink basically becoming nothing more than a high-tech laser sight.