DryFireMag, LLC produces a dryfire training device that fits into the magazine well of pistols. It provides the tactical and audible simulation of the trigger release and reset without having to rack the slide to reset the firing pin. The mechanism is completely contained in a magazine-like case and requires no alterations to the pistol before or after the dryfire training session. The device allows practice with the shooter's own weapon and can be Installed in seconds. The device does not engage or release the firing pin, so there is no wear or tear on the pistol. Available for Glock, S&W M&P (less)