RE: New glass...
I was just looking at the Midway flyer. There are a couple possibilities. The Weaver Grand slam has a 6x20 with a fine crosshair for 339.00 and a sightron S2 tactical 6x24 mil dot for 335.00. Both have AO and both should stand up to about any recoil you could throw at them. Also check ot riflescopes.com. for more Ideas. You might also check out Cabelas on the webb they have a good selection.