Since Crosman "improved" their website I have trouble finding service manuals. Most Crosman rifles are based on the Chinese B18, B19, and B20 airguns. The B19 is simply an update on the B18 - most parts interchange. The B20 (XL series) is different. I'm not sure where the SS series fits.The NP2 series is a completely different animal, as are their PCP offerings.Try to get a part number for your Fury stock, or some other parts. Find a gun with a stock you like and get a part number for it. If the part numbers have B18 or B19 in them they should interchange.