This light is exactly what I needed. I CCW a Walther PPQ with this light in a Raven concealment holster using the R1 key. It doesn't extend past the barrel, doesn't make the required holster wider and is intuitive to use. The light is plenty bright for personal defense needs.
Pros: Small, bright, easy to use, great customer service.
Cons: Rubber seals needed trimmed with a razor to fit in custom holster.
This review was written in the old system and had content requirements that are different than reviews written today.