Pete, did Knight tell you those rings took the Weaver-style bases? Warne did make a line that took a special base - I believe they werePremier bases/rings - similar to thethose that weremade for Kimber. Just thinking those QR rings might be that smaller base type as I know Knight did sell those under their label at one time.

Just curious.

Gamaliel closed out a bunch of those type bases some time ago for dirt cheap and might still have some even though I can't locate them there. This page shows the base I am thinking of..... http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=15527&title=PREMIER+ALL-STEEL+BASES

If they are the Weaver style Allabouthunting.com has them for 28.25 . Just go there and search for:
Maxima Series Quick Detach Scope Rings And Bases MML Q-DET SCPBAS 2PC SS Item #290780 Mfg #900763