California is a land of paradoxes when it comes to firearms. In spite of it having onerous regulations, it’s the largest market for guns in the US. It’s also home to a large number of professional competition shooters.
So there's a reasonable chance that 2-out-of-3 judges chosen for the initial case will be R-appointed out of the 13R 16D current makeup of the Circuit. On the en banc case (if there is one), the R's would probably have to pull a 6-4 majority among the 13R- and 15D-appointed judges (leaving out the Chief Judge) in order to provide a 2A-favorable ruling.