If it came from Taiwan, you could have a Chinese thread.
Their Radial and Uni Loc style threads are different for example.
I don't know a lot about the differences in threads but I do know from the ones that I have worked on. Nothing fits them. Close, but No Cigar. Close only counts with hand grenades and Horse shoes. And S hit Fights.
If you really like the butt, take it to a repairman and have him change the pin for you.
Much less aggravation for you in the long run. Won't cost a ton either.
Remove pin
Bore out hole
Plug
Bore and re tap for your choice of pin
I'm a serious OCD repair man and I can do one fairly quickly.
Their Radial and Uni Loc style threads are different for example.
I don't know a lot about the differences in threads but I do know from the ones that I have worked on. Nothing fits them. Close, but No Cigar. Close only counts with hand grenades and Horse shoes. And S hit Fights.
If you really like the butt, take it to a repairman and have him change the pin for you.
Much less aggravation for you in the long run. Won't cost a ton either.
Remove pin
Bore out hole
Plug
Bore and re tap for your choice of pin
I'm a serious OCD repair man and I can do one fairly quickly.