I have set up 2 for myself and one for a buddy. One of mine wears a VX2 3-9x40 in leupold dovetail extended. The other has talley extended lows with a Bushnell 4200 3-9x40. If you use the talley extended lows you will be limited to certain scopes, VX3 2.5-8 are too short even with the extended rings and some scopes with large power selector rings (bushnell trophy 3-9) will not work with the low height. Leupold VXs longer than the 2.5-8 should work fine with the talley extended lows.
