I found an upper lasers that I’ve mounted on my pistols and rifles. I would put this in the top two or three of the ones that I owned. He’s have included a number of different brands; the top brands as far as ratings are concerned and these are not only bright but have both continuous and “strobe-type” settings. In addition there is the possibility of setting them so they activate when the pistol is held in a shooting grip. I am not certain it I will use this but the versatility is intriguing. Very satisfied.