Nocturn Industries Tanto Night Vision Monocular Housing

The Ceracoated housing is good for a 3.2oz weight reduction compared to a PVS-14 at the cost of the low battery warning, adjustable gain, built in IR illuminator, and use of AA batteries (uses CR123 batteries).

DIY installation requires care and patience in getting the tube fully inserted and aligned and to avoid cross threading the tube retaining ring, rear lens assembly, and rear lens assembly jam nut ring. Some tedium should be expected in properly adjusting how far the rear lens assembly is tightened to assure full diopter focal range. Likewise, perfectly adjusting the infinity stop ring for the front lens will require trial and error. A clear night with visible stars is recommended, as dimmer stars focused to sharpness provide an excellent indicator for near perfect infinity and focal adjustment. Adjusting the rear diopter for your particular eyesight/prescription is the final step, and also easily accomplished with the help of some viewable stars.

Even including the weight of a Princeton Tech IR light to restore an on-helmet IR light source, this housing is still the lightest monocular solution on the market.