The laser is easy to mount. One side has a single screw. The opposite side is spring loaded. Loosen the screw. Angle the laser from the screw side on the mounting rail. Then press on the screw to open the mount and install on the pistol. Tighten the screw.
Pros: Bright, narrow beam. Easy to mount.
This review was written in the old system and had content requirements that are different than reviews written today.