Well, I have been out out of the Army for a little over 40 years so I don't even recognize that thing.
I must admit though that since I gave up local radio and TV over 4 years ago, and have a functioning antenna mast and rotor on the roof, I have been thinking that I ought to mount something similar looking on that mast that I can rotate from here since it would augment my CCTV system quite nicely.
I would not want it to be real, just scary looking since these days, they keep trying to ban "scary looking" guns and their accessories every time we turn around.
Of course, it would be fun to make it fire paint-balls so that I could do something about that jerk that keeps dumping trash trial editions of the local newspaper that I detest on my driveway.