The top-lever should lock to the right when you open the gun and stay there until you snap it shut. Some shade tree mechanic probably removed the trigger plate screw and lost at least the spring and at worst both the spring and the trip that hold the rotary bolt open. To see what I mean, see the disassembly instructions on the A.H. Fox Collectors Association, Inc. web site --

http://www.foxcollectors.com/ah_fox/content/disassembly.html

Last edited by Researcher; 05/29/15 12:25 AM.