Holosun says:
“LS117G is a class IIIa green laser aiming device designed for long gun applications. The LS117G features a 7075-aluminum matte black anodized housing with a quick release Picatinny rail mount. The LS117G is powered by two included CR2 lithium batteries which can provide up to 5000 hours of battery life”
My thoughts:  it is so dim it is not usable outside. I originally bought this because it takes a 3 volt battery thinking it would be brighter than the red beam.  Also, when researching what to put in the video description, I noticed that the Holosun website that it says it is powered by two included lithium batteries, but it actually only takes one, and only includes one in the box even though there is a slot for a second battery.  I really wish I could’ve taken this to the range and show you how dim it is outside but I don’t want to risk dropping it or anything because it is getting returned and I won’t have to find a different alternative.
