I've got one of these and one of the UNI-MAX lasers. The Crimson Trace IR laser is a better value than the UNI-MAX. The Rail Master's 5 minute automatic shut off feature is great, and the switch position and housing are better designed than the competitor. The UNI-MAX is too easy to accidently bump and turn on, but it does have a remote switch available. If I had it to do over again, I'd have two of the Rail Masters and none of the competition.
Pros: Easy to use, 5 min shut off
Cons: No remote switch available
This review was written in the old system and had content requirements that are different than reviews written today.