I had this on the Lantac before swapping it out for the Minox.
Had it for about 5 yrs, its been fault free and as good as the reviews, this is not the IR version. Genuine item.
Tech blurb from a site selling these.
The HWS XPS2™ is the non night-vision version of our shortest and lightest HWS sight so far. The CR123 lithium battery configuration of the XPS2 provides additional rail space, leaving more room for rear iron sights or magnifiers. Also offering water-resistant capability up to 10 feet, the XPS2 is a great compact and lightweight option for your platform
Dims: 3.8" x 2.1" x 2.5" (96.5 x 53.3 x 63.5 mm, Weight 9.0 oz (255 g), Water Resistant 10ft. (3 m) depth, Mount 1" Weaver or MIL-STD-1913 rail, Windage & Elevation Adjustment 0.5 MOA per click, Brightness
20 daylight settings, Power Source 1 x CR123 battery, Battery Life 1,000 continuous hours at nominal setting 12 at room temperature, Operating Temperature -40°F to 140°F (-40°C to 60°C)
Country of Origin Made in USA
Looking for £450 posted and insured. Currently still selling new for around £640