Gun guys may recognize this as a retooling of the original Troy dioptic sight from a couple years back. Steve Troy explained to us that the older version restricted the field of view and decreased the available windage adjustment. The new design allows full windage adjustment and opens up the full field of view.
The sight Troy sent us to play with is a proto, shown above. They were still fine tuning the vertical line placement on the close distance aperture. The proto we have has the line at the edges of the aperture corners. This configuration works by placing the outside edge of the front sight post on the edge of the line. Ultimately, Troy chose the more common and easily understood centered reference, which he said seemed to line up more quickly.
The sights have two rotating apertures. One for up to 300 meters and a another for up to 550, the max effective range of the M4. It uses the same simple robust locking deployment mechanism found in all their folding battle sights. They are offering them for an introductory price of $140. More info: troyind.com
