Redfield Revenge 3-9X42 "Dial-N-Shoot"

Now surplus to my needs, I have an excellent Redfield Revenge 3-9X42 the "dial-n-shoot" feature.  The lenses are in perfect condition with Redfield's 4-plex reticle. The 
"dial-n-shoot" feature is a BDC system built around 4 common calibers as well as a generic range drum.  Theory is that you sight in at 100yds. then set the range drum at 100yds.  Again, in theory you now only have to dial in the distance at which you're shooting and the you're supposed to be on target.   You will note that it comes with Butler Creek flip-up lens covers and very good high rings.  It does have some ring marks but this does not affect function.This whole package sells for north of $300.  I'd prefer face to face but I will ship on the buyers dime.  Thanks for looking.