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!!!
There are threaded plugs with screw driver slots.You need a slotted screwdriver bit exactly the size of the slot and some penetrating spray and a 1/4" ratchet but you may need a 3/8 ratchet with 1/4" adapter for more leverage Many times these are hard to get out but if you keep with the penetrating spray and the ratchet they will eventually come out.