Greetings Al, In this photo of PT-109 there is something that appears to be attached to the starboard 50 cal. machine guns. Do you have any idea what this might be? You can see it between the heads of the sailor in the white t-shirt standing on the left and the sailor sitting on the chart house next to him. I've never seen it anywhere else. Any idea what this is? A gun sight? No idea! Like you, I've never seen anything shaped like that associated with a MK17 mount. I checked my MK17 manual and there's nothing like that in that specific position. The ring sight, when fitted, is up at the front of the receiver. This item seems to be on the trigger extension bars and may be nothing more than something one of the crew tossed up there. Al |