A throw-lever releasable mounting system for mounting a device in quick-release relation to a support member has a mounting base having a configuration fitting opposed angulated rail surfaces and having a locator key engaging a positioning slot of the rail. Each mounting base provides for mounting and...http://www.google.ca/patents/US20060123686?utm_source=gb-gplus-sharePatent US20060123686 - Adjustable throw-lever picatinny rail clamp
