Dry Insert Training System

The units worked as advertised in any of the magazines I placed then in. Good for all calibers

Great little product

The device is a waste of money. You still have to rack the slide to take your next "shot" There is absolutely no purpose to the red insert. The instructions say "short rack" which is exactly what you need to do with an empty mag in order to take your next shot. I hope his training advice is better than this