Oh you guys are great.... from what I've found so far is that this "thing" does not exist. I do make two Range Finders, one mounted on each end of the Island. That drawing shows 2 Ranger Fnders, one smaller than the other mounted on the forward end of the Island. That drawing also shows no gun shields, just railing... where-as my plans have gun shields both ends. Not sure what to do here. I found where another builder just eleminated this "thing" from the model and now I can see why. unless I can find actual proof that its real, I won't mount it. But what do I do about the shields is still in question here. Dennis