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Old 11-14-2012, 09:51 PM   #6 (permalink)
Seasoned Member
Join Date: May 2008

the sterling is definitely older so the body should be sterling threaded. My guess is that is a lapco raptor to spyder adapter milled turned down 1/4 inch to screw all the way in.
My MCB feedback:

wanted: got most of it for now.

currently in China
James_Blond is offline   Reply With Quote