Hi, my name is Dennis. I have a question about lasers. I found a Viridian Reactor 5, green laser. This particular item fits my S&W M&P Shield 40. I have zero experience when it comes to lasers. Does anyone have any thoughts about lasers mounted on handguns? I might add that I have a handheld tactical light for low visibility. I haven’t purchased the laser just yet, but I am excited in the thought that it might help in improving my accuracy. I do feel like nothing should replace the use of my front sights. Thanks for any insight into this subject