Tru glo makes a extended eye relief scope that works really well and reasonably priced but thats not the real issue. The problem with the scout mount type scopes that use that rear base to mount the rail on is they never hold zero. They loosen really easily and use some really small screws to retain its position. Your better off with the D/T type that hold the scope to the rear and bending the bolt. By the time you pay for a extended relief scope and mount you could get the DT type, have it installed and have the bolt properly altered.