https://youtu.be/M4iFu9aIYOI?si=nBH5ENqp5BBVGid1
Unbelievable how they used to make guns by hand..
https://sadefensejournal.com/the-way-of-the-gun/
https://tribune.com.pk/story/458310/the-legendary-gunsmiths-of-darra-adam-khel
chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.airuniversity.af.edu/Portals/10/ASPJ_French/journals_E/Volume-07_Issue-1/malik_e.pdf
aLL THESE PLACES STILL MAKE GUNS BY HAND, FROM RAILWAY LINE STEEL TO BOILER ROOM PARTS.
You may find this interesting -
history of firearms - with Jeremy Clarkson