I have a model 1900 in the shop for restoration. I have the receiver fully stripped except for the firing pin cups. They will not come out. I am looking for any reasonable suggestion for the removal of these cups. HELP!!!
The firing pins are held in by threaded plugs with screw driver slots.You need a 1/4" screw driver bit exactly the size of the slots in the plugs and 1/4" or 3/8" ratchet.You will need penetrating spray and allow it to set for a while then spray again.Most of the time it takes a while to get them out.