Not sure what it's for. It is plastic with a (very heavy) spring loaded metal clylinder. When it's "cocked" (by pushing the cylinder back into the barrel), you can unscrew what appears to be a firing pin in the back. There is also a small slot cut out on the right side as well. Markings are "HS" on the grips and "Made in West Germany" on the left side above the trigger. At first I thought it might be for some sort of injection or other darting function (i.e. for livestock usage) but there are rudimentary sights which I wouldn't think you'd need for something you were going to just hold right up to an animal. Someone else suggested it's a "gas pistol" to shoot little tear gas pellets -?
Any help in identification and valuation appreciated.
Any help in identification and valuation appreciated.