Quote Originally Posted by Phil Russell View Post
Cosmetically very good except for broken rear site.


I'd look for a spring around 2.9mm wire diameter, 19.1 - 19.3mm outside diameter, with between 30 and 33 coils (giving rates between 32 lbf/in and 29 lbf/in respectively) that gave a natural (without packing) preload of around an inch. That should be in the right ball park.