Mossberg barrel device of some sort

[phillyriverrat57]

I might know what that is, Back in the late 1970's and early 80's there was a company that sold a item much like that, it was for putting a 2 leter bottle on the end of a gun, making a ONE SHOT supressor. you wold have to replace the bottel after each shot as the bottom blew out. I actually heard that they worked. check it by trying to thread a plastic bottle on the end with the mouth fitting inside of the recess. it should screw in, if it does, then you know what you have .

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[Calfed]

I might know what that is, Back in the late 1970's and early 80's there was a company that sold a item much like that, it was for putting a 2 leter bottle on the end of a gun, making a ONE SHOT supressor. you wold have to replace the bottel after each shot as the bottom blew out. I actually heard that they worked. check it by trying to thread a plastic bottle on the end with the mouth fitting inside of the recess. it should screw in, if it does, then you know what you have .

Definitely not for a 2 litre bottle. There is a threaded nipple that sticks our of the front of the device. The knurled knob protects the threads.