I am selling a Warne 1-piece tactical picatinny style 20 MOA base for the Accu-trigger, round receiver Savage model 10s. Warne's web site shows this model as M666-20MOA (SA). I mounted it on a gun that was never fired and now I don't have a long range gun, so I have no use for it. It is perfect and what you would come to expect from Warne's fine line of steel bases and rings. I am only asking $75, which is better than a 25% off savings from buying it new yourself.