"Hanger Queen" but still a Luger

[SleazyRider]

One other thing: Diet Coke contains phosphoric acid, which is the active ingredient in Naval Jelly and other rust-removers. Old-timers used to free up their rusty tractor engines by pouring Coca-Cola down the spark plug holes and letting them sit. (Diet Coke is not as sticky.)

Before you go any further, why not try soaking the gun, sans grips, in Diet Coke? Stranger things have happened ...