TO convert a 12fv to dbm you only need to get the bottom metal or "surround" for the magazine and the bottom piece for the mag. The trigger guard that comes with the 12fv will work with the other bottom metal piece you need for the mag. Contact Savage Customer Service parts Dept for the parts you need.

As for Boyds, you can open up any of their stocks that are contoured for "Factory barrel" so as to fit the 12fv's varmint contour barrel. If you find one that has Bull barrel, that will work, too.

Look for a short action, center feed, top bolt release, detachable magazine for either bull barrel (preferable) or "factory". It does not matter if you call it a "10", "11" or "12". What matters is Short Action, Center feed, Top bolt release, detachable mag.