I was on USS Chafee (DDG-90) couple weeks ago (in Danang, Vietnam of all places) and stepped out on the bridgewing and saw this puppy. Notice the picatiny rail..theoretically we could mount a laser on this bad boy.
You couldn't put a quarter in and try it out, like the mounted binoculars they have? I'm kind of surprised it doesn't have a cover on it even in fair weather unless they were expecting possible action. Of course, Vietnam.