2 Century made
3. SA 58
4. Nope! Well.... technically yes but those are hard to find. Century did import some semi auto rifles. I believe a bunch came in from Canada and theres been a few others.
5. Kinda. I forget who...DSA possibly....got a large batch of Israeli parts kits and built them into semi auto rifles. This was about 6 months ago.
6. NEW DSA are cast receivers. I've read mixed reviews on them and sometimes it's hard to tell whether or not someone just doesn't like it because it's not traditional or because there are functional issues.
I have one I was debating on selling. It's all Argentinian (metric) semi auto. Only one caveat. It doesn't run. FCG is dead and it needs Argentinian specific parts. I was going to send it to Arizona Response Systems. Mark told me...."Any FAL* hammer/trigger/sear set can be used in an argy lower if the cross bar/rivet in front of the hammer is removed." I took it to a few gunsmiths but none are knowledgeable about FALs and don't want to chance F'ing something up. If you're confident in your abilities let me know. Assuming you live where it's legal