This light is a Streamlight TL-3 with a shock isolated halogen bulb. Produces 210 lumens of light that throws very, very far outdoors.
Mount (for 1913 mil-spec rails; a.k.a. railed forearms)
Flip up IR filter
Batteries (3 CR123 batteries, in the light, roughly 60% battery power left).
Light is in great condition. Never used in the field, and only mounted for ~50 rounds. Spent most of its time just sitting on the rifle, sitting in the safe.