To the guys commenting about epoxy - I said bed it to the rifle, not glue it to the rifle. The epoxy sticks to the scope mount not the receiver. Why? Because of the hand work that went into 99s they have variations in shape, especially at the rear of the receiver.
To the OP - I did list the proper rear mount that Weaver makes for a Savage 99, so you won't be having to adapt it. Fastfires fit Picattiny or Weaver. I have 3 Fastfires that have been on rifles, shotguns, and handguns.
