I have 11 pistols and revolvers, and have one form or another of Crimson Trace lasers on all but three (not available for those models) of them. I have never had a problem with any of them...something that I cannot say for some of the other brands I've 'tried'. Crimson Trace lasers are the best!!
Pros: Reliable, effective, easy to instal & easy to activatel, good quality.
This review was written in the old system and had content requirements that are different than reviews written today.