purchased for use on a rimfire pistol for plinking and target shooting. Sights in well and stays there even after a few hundred rounds at the range and being stuffed in a gun bag for travel. The holo reticle is easy to see but can get lost in severe glare. The laser is bright and the button takes real effort to press, which prevents it from accidentally activating in a gun bag. Install is solid on the rail.I wouldn’t rely on one of these for any hard recoil center fire gun. But for rimfire, air guns, or air soft this is a solid unit.