Generic pong console Gun pinout

[swissarmytin]

Hi all, kinda random, but does anybody know the pinouts for the gun accessory that came with a lot of pong consoles? Specifically one that came with the Radio Shack TV Scoreboard 60-3057, though it appears to be identical to the ones from the Unisonic Tournament 2000 and Volley IV, among others (the pistol/rifle combo). The one I have has had it's cable cut off, though I have several 5-pin din connectors so fabricating a new cable should be easy, just can't find the pinout. 

 

Thanks!