A quick mount with a strong laser but with a design flaw... - ADE Advanced Optics Mini/Micro Reflex Dot Sight Mounting Plate for Colt 1911 Standard

I found this laser sight to install quickly with a nice strong laser point. It was easy to line the sight up to my iron sights and remained fairly accurate after about 50 rounds through my Glock. The only reason I dropped a star is the lack of a lock on the finger switch which is quite easy to activate when needed, but unfortunately too easy when you case the gun. Without removing the battery or wedging something under the switch when cased (my solution) you can count of a dead power source when you need it most. Overall however, a great deal for the money...