Great green laser, much better than red one - Viridian Universal Fullsize Green Laser Sight with Tactical Light - Zombie Edition

The visibility of this green laser is much better than my Crimson Trace laser grip, and the setup is easy.

The only problem is, although it is programmable, you cannot change it on the go once you have set it up.
Pros: Easy to setup, great visibility
Cons: Hard to change setup

This review was written in the old system and had content requirements that are different than reviews written today.