I own 2 of them right now and always seem to have the wrong one on my rifle at the wrong time(1 is high & 1 is low) . That being said, I love em both. I'll probably be getting the medium on this fall.
I'd check with any of the mail order places. There's never much differences in their prices,about 60 bucks. You may check some of the auction sites or at local gunshows.
HWD