murdock » 48 minutes ago » wrote: ↑
I think I still have the original stock with the hole. For some reason people used to call it a butthole stock, which I thought was dumb.
Well, people were pretty pissed off at Clinton for the AW ban. Because of that we lost our bayonet lugs and imported rifles could only be "sporting", thus the thumbhole stock.
Norinco was making too much money selling AK's to Americans, so that's what they came up with. Others followed suit. Then inventive American gun-parts makers figured out how to make an ordinary stock that could replace the thumbhole stock. IIRC, the angle of the receiver rear trunnion on the AKM is a bit different from the AK, so an ordinary AK stock won't fit.