anybody know the thread pitch, size or number the sight screws are on a Karr Thompson ? I'm replacing it with a 1928 Lyman sight. thanks
Posted: 5/31/2013 3:39:31 PM EDT
[#1]
you're better off cold riveting it on. there is only one or two threads of those little guys doing anything. once you disturb them they will come loose, and you are more likely to strip the receiver then tighten the sight up.
Posted: 5/31/2013 4:09:36 PM EDT
[#2]
Over on Machinegunboards.com; in the Semi Thompson forum there's a thread about doing the swap.
