It's the same as a 2100. You could order a new receiver side.
Being the type of person I am, I am not going to deal with warranty on this 1000. I opened it up to see what was wrong, sure enough I found the problem, could also see it from the outside, the one screw was not holding the receiver at all, broken piece on the inside of receiver. Since the warranty is voided now, I just went ahead and used some Loctite adhesive gel and put it back on. Not sure if parts are available yet for this model as there is no parts manual as of yet. Just for a little extra hold I put 3 strips of black electrical tape in the area that was effected. Just by doing this tightened the whole barrel area up. Kind of stinks a new Crosman can be in this condition, but oh well, not like it cost a whole lot, that is why I am not dealing with the warranty.