Great product - LaserLyte Laser Trainer Pistol Cartridge

Great Product. It helps you practice good trigger discipline and sight alignment. While from short distances, most people have good enough aim to get the job done, but this will help you became a more accurate shooter if you use it. I've personally had trouble keeping tight groups even in slow fire, this has helped me realize that it was because of poor sight alignment. I'd recommend this 10 times out of ten assuming it holds up. It is really expensive though, as is the training aid that you can buy to go along with it. That would be the one knock, if I had one is the price. And if this were to fail to work, then I'd be super disappointed. The pros are it does what it say, works in 9mm, laser activates when hammer hits it, if you have the targets, they make a sound or light up.. Cons, full setup is around $200.