I found this guy tucked away in the farthest corner of the convention center. His product, the iMarksman, is a laser-based training simulator that’s developed for the home user. Using a drop-in replacement slide (and a new trigger pack for those striker fired pistols) the system uses the gun you already have to fire a laser every time the trigger is pulled. That laser is used to shoot at targets projected on the wall, targets which can be programmed or random and include many different types, and can even include video. The system records how the gun moves as you’re pulling the trigger, and shows you where the shot would wind up. The system retails for about $1.5k, but as tech and materials get cheaper it makes sense that systems like these will only get cheaper.