Instructions
Know that there are pros and cons to laser sights before you mount them on your pistols. While they are extremely accurate, laser sights do not operate well in daylight or sunlight because the beam often does not show up on the target. Therefore, you must learn to shoot with iron sights also.
Mount laser sights on a revolver pistol by removing the hand grip. Laser grips are the most common for revolvers. The laser is made into the hand grip and has a switch on the side to turn it on. Remove the screws from the existing grip and replace them with your new laser grip. You have two adjustment screws for up and down and right to left positions.
Consider these points for mounting laser sights on semi-automatic pistols. Newer semi-automatic pistols have a rail built into the receiver under the barrel. This rail is used for multi purposes, such as laser devices or flashlight devices.
Prepare to mount the laser sight onto the rail on the receiver. You have two screws that attach the sight to the rail. Tighten these screws securely. Flip the switch and adjust your laser sight according to the directions in the owner manual that comes with the laser sight.