Red dot Scope advise?

[gwiff100]

So as i was preparing for my next deer hunt this weekend....i was looking are one of my red dot scopes and notice that it happends to be missing a turret cap. (only i could loose this piece). Here in lays the problem...the only markings on the scope are "ONE V" and "Made in japan" (figures) i cannot remember the model number nor the manufacturer. The remaining cap (same size as the one missing) is 12mm (interior) 14mm(exterior) and approx 9-10mm in hieght. I know this is probably pointless, but can anyone point me in a general direction. once again this is a red dot scope missing a turret cap.

Please help if you can.