I have a Crosman 1701P and i am looking for a rear sight to fit it. I know about the one that Gmac do, but it is very expensive, is anyone aware of a more competitively priced one that will fit. I have looked at my other guns to see if one of them will fit, but none are suitable. Like the Gmac one i want windage and elevation adjustment. quite happy to buy a used one if anyone has one for sale? cheers in advance.

The reason i want an open rear sight is that I want to do 10 metre rifle shooting, but all my rifles are 12ftlbs, and for 10 metre it needs to be under 6ftlbs. So i own this pistol and thought it would be a good idea to put a stock on it and an open rear sight so i could use it to start off with. maybe later progressing to a proper rifle.
The stock is off a 2250XL, it bolts straight on with no mods!