WE MANUFACTURE THIS STOCK FROM SELECT STRAIGHT GRAIN AMERICAN BLACK WALNUT FOR THE STEVENS/SAVAGE MODEL 5100. SOME ORIGINALLY CAME WITH A "TENITE" (PLASTIC) STOCK AND MOST WERE MARKED MODEL 5100. THE ONLY DIFFERENCE BETWEEN A 5100 AND A 311 IS THE "SQUARE" CUT ON THE BACK OF THE RECIEVER. STOCK IS APPX. 95% SHAPED, INLETTED, AND SANDED. COST IS 92.00 EA.