I've got a 2200w here which is in a anniversary box aswell, Always fancied putting a scope on it but the dove rail dont stick up much, Are normal mounts ok to use on the top of these guns, Never tried before as I dont want to mark it, The condition is excellent all over and dont want to risk marking it, Only ever had a plink in the summer on the idd occasional day.
I used a single clamp one piece Sportsmatch to spread the load and prevent damage.
The two halves of the receiver aren't 100% perfect. One thing that I noticed when I pulled it apart all those years ago that it was slighty under tension.
Adding a scope mount could increase the tension causing stress to the diecast reciever sides.
It's an underrated an air rifle.
There's a bolt that runs from the butt to the reciever side plates, there's a flate plate the other end.
Another area that could cause a stress/crack failure.
http://support.crosman.com/hc/en-us/...C2200W-EVP.pdf
Scroll down to page 3 (I think it is), don't worry it's not the Sun.
Large flat bladed screw driver should tighten it.