Something fun for you--this video from Industrial Revelations starring Mark Williams (most Americans Know him as Arthur Weasley from the Harry Potter Films). The Show ran on the British Discovery Channel. Birmingham was the ideal site for gunsmiths with its raw materials and skilled metal workers.
Unfortunately, no embed code is available,so, you'll have to follow this link:
http://videos.howstuffworks.com/discovery/34273-industrial-revelations-birmingham-arms-trade-video.htm
Enjoy.