I've just checked the Crosman website
I always thought they came out & finished earlierModel AIR-17 Pneumatic, BB repeater, .177 cal., single shot pellet w/5 shot clip. Rifle 1985-1990
Looks like I can't use it for this comp.
My SA Parabellum is fine finished Production in 1979.
I'm now finding it hard to find the end production date of my Norica Commando.