Todd, A CNC built trigger guard for the 600 is or was available. You might do a search. I did drill and tapped my Grandson's 600 for the 1/4"x28 thread.

Try this-https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/2637010/all/F_S_aluminum_Trigger_guard_for