never seen a 1 pc.

if they are still have the 3/8" dovetail in addition to being D&T'd, wonder if these would offer sufficient spacing on a 2 pc base? (Looks like Rem re-incarnated the Marlin 915 series under the Rem label maybe?)

http://www.brownells.com/optics-mou...ovetail-to-weaver-adapter-prod18690.aspx

or maybe something along these lines?

http://www.sportsmansguide.com/net/cb/3-8-dovetail-to-weaver-adapter.aspx?a=762821


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