These are USGI used PSQ-18 grenade launcher sights. Used means that these sights had been issued within the military in the past and show some signs of wear and use. There are scrapes and scuffs along the exterior. Laser apertures and elevation window are functional and intact. Switches and elevation knob are completely functional.
This PSQ-18 was designed for use with the M320 grenade launcher. The sight allows the user to aim their M320 more precise with the help of a adjustable level and iron sights. The sight also includes a IR pointer and illuminator for use under night vision devices. The sight can be attached to standard 1913 rails with the included mount. For mounting onto a rifle its recommended to have a small riser as the battery compartment will not allow for a flush mounting.
These sights are a good compromise when looking for a night vision capable sight on a budget. The IR pointer is good for close range targets and shooting as well as the IR illuminator being of good quality.
For use of the IR laser you need a compatible pressure pad that plugs into the sight.