I have no use for these rings as I sold my bolt gun last year. These rings are awesome, but just taking up space. I believe they are 3-4 years old. These rings were only ever tightened with an inch lb. torque wrench for both the ring caps and the base bolts.
They are Badger part number 306-21. I just measured them and compared to the Badger size chart(http://www.badgerordnance.com/resources/size-chart.html) and the “B” measurement was .294 which matches to the Medium ring.
$125 shipped and insured.
