Compatible Only with Glock 9mm - G43x, G48; Not compatible for 10mm, 40 or 45 caliber or .357, or any other models; The SureStrikeMag combines the Smart DryFireMag by DryFireMag, LLC and the original SureStrike laser cartridge by Laser Ammo; This product allows you to train with your own pistol; They provides instant feedback with an eye safe Red laser; You can use the SureStrikeMag with any of the Laser Ammo reactive targets; The SureStrikeMag is easy to set up - You just insert the laser cartridge into your firearm chamber; You can practice your trigger control, sight alignment, grip, stance, speed, marksmanship and more; The SureStrike laser is made in Israel, built from a stainless steel body; The SureStrikeMAG is set to simulate a factory Glock 5.5 - 6lb trigger weight