I have 2 brand new Tier One pic rail adapters for Blaser scope bases. 1 is for the new R8 style, 1 is the older R93 style. I ordered them from Optics Trade but both are a little tall for my liking. $85 each TYD, PayPal or check accepted.
No, these are adapter rails that will attach to either the R8/93 style mounts. It just allows you to run a pic rail without having to buy a separate Blaser mount. If that doesn't make sense, I can post some pics.