Originally Posted By: HomelessjOe
The Webley "screw grip action" has nothing to do with an underlever..."screw grips" were mostly used on box locks


Webley & Scott offered at least a couple screw-grip sidelocks, as shown in Ron Forsyth's article on screw-grips in Shooting Sportsman, Sept/Oct 02. In addition to the rib extension, if you look at the slot in the breech face, you can see threads (hence, the screw-grip) on the spindle.