No expert on this subject, but i would like to comment about something I saw on the local news.
Availabilty of American surplus firearms......
News story several years ago. Fort McClellan (local).....dumpster loads of old miltitary firearms being saw-chopped right through the center....then sent to the recycler for smelting as scrap. Bolt guns....M1 carbines.
Made me sick. Scrap iron price.