This new dry fire training system is as simple and realistic as it gets without going to the range and using actual ammo. The system in a nut shell is a barrel replacement that is basically a CO2 cartridge. Each strike of the hammer actuates a pressure release valve that vents enough gas to work the slide. The barrel is coupled with a small red dot laser unit that is momentarily activated by the trigger. The best part about the CoolFire Trainer is that you use your own weapon for training, not a training replica that resembles your pistol. Check out the following video to see how it works.
Exactly how easy is it to install the system into your pistol?
(Featured image courtesy of thefirearmblog.com)