Units 334-663: M1117 ASV
1)FC and Range finder could be increased to 3
2)Vision could be increased to 20
The vehicle is fitted with a M-36 day/night gunner sight.
Quote:
The M36 sight provides the gunner with a 7-power sight with a reticle calibrated for both weapons
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Sources:
http://www.textronmarineandland.com/..._datasheet.pdf
http://www.inetres.com/gp/military/cv/inf/M1117.html
In addition I have enquired former users: the sight is nothing of spectacular but still better than iron sights. It also has some night vision capabilities, passive infrared if I understand correctly.