I have a set of Leopold two pice bases and not sure but might be Burris Z rings. Rings have plastic inserts that rotate in the ring. They fit Browning A-Bolt Long Act. in Very good shape..$30.00 shipped. A set of Redfield one pice base and rings fit Win 70A long action Redfield part # 510101 they are in 90% condition. $16.00 shiped. Postal MO only please can send pics. to a Text # or email. Thanks.