Just a thought... Any idea of the power of this rifle?
Manufactured in 1980, if this rifle was bought from Germany, it would have to have the "F in pentagon" to be license-free there, meaning about 6 ftlbs if the spring hasn't been changed.
If the rifle really is within the German limits it might be good idea to state so in the sales ad, to avoid any complaints about missing power.
Cheers,
-Topi