Purchased for my AR, mounted firm to picatinny side rail. ULTRA BRIGHT! Couldn't ask for brighter. Don't catch yourself in a mirror or you will blind yourself bright. Small and well made. I didn't want a light with a palm pad. This works great. I have a forward grip and with a flip of the thumb you have solar flare in someone's face. Lights up entire room. Strobe is a very nice function and easy to flip back and forth. It may be a little pricey, but you wont care when you see the quality. Very Satisfied.