The California Supreme Court's ruling that the attorney general could add all AR-15 and AK-47 clones to the Roberti-Roos banned list sort of took away their market.
The FN-FAL was named in the original Roberti-Roos AW ban. I am not familiar with the M93. You can go to http://caag.state.ca.us/firearms/regs/aw.htm to see the original Roberti-Roos list and the most recent attorney general add-ons.