Great flashlight! i've put this model on several of my firearms - SureFire M640DF Scout Light Pro Dual Fuel LED Weapon Light

Excellent flashlight for multiple firearm platforms. I've had the older Surefire lights; but this is a large improvement over those and other current models in market. I like the simple attachment system/option and the ability to add a pressure switch if I decide it's needed. I was a bit curious about how well the rechargeable battery would work, but it seems to be doing everything the manufacturer claims and more. It is reassuring I can put in standard batteries if needed though. One thing I did notice is this light is so bright it can potentially wash out an optic when used in very dark conditions and you flip light on (happened to me). To counter, you may need to bump up brightness on your optic/red dot vs your "normal" setting. Easy fix. I'm happy with this purchase. I hope you have a similar experience.