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Old 10-31-2005, 19:45   #11
Bill Harsey
Bladesmith to the Quiet Professionals
 
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Join Date: Feb 2004
Location: Oregon, Land of the Silver Grey Sunsets
Posts: 3,886
my real guess...
A slide tightener for the 1911 .45?
The acme threads I think I see are for max pressure on the screw.

edited to add, for really small .45's

Last edited by Bill Harsey; 10-31-2005 at 19:47.
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