The bolt handle moves sometimes when I shoot my Discovery air rifle! It flops up a little, but does not open. Is that normal?

Short Answer:

Yes

Long Answer:

This is something we have heard about in the past. It happens on some guns and not others. There is nothing but gravity holding the handle down. As long as the bolt does not open, there is nothing technically wrong with the gun. Make sure there is an O-ring on the bolt nose. If the O-ring is missing please contact Crosman Customer Service.