I'm sure most everyone has heard of the Laserlyte lasers but I found this one while doing some research. It's about half the price of Laserlyte and cost me $97 shipped. So far, it's been a really cool training aid and makes dry firing a lot more enjoyable. Only issues I've had is that sometimes it doesn't registers every single hit. I think it had something to do with the lighting and I didn't have the sensitivity turned up enough. It seems to be really accurate and we actually zeroed a RMR and Aimpoint Micro when using it. If you're looking for something to play around with at home or want to save some ammo, you might check it out.
https://www.itargetpro.com/
https://www.itargetpro.com/