A firearm on the CA Roster = 'not unsafe'. A dimensional compliant single-shot (regardless of who manufactures it) isn't 'not unsafe', its 'roster exempt'
In the past, there wasn't really much distinction between the two, but the laws changed a couple years ago resulting in the possibility that modifying a 'roster exempt' gun into a semi-automatic could be interpreted as illegal manufacturing of an unsafe handgun.
There aren't legal issues with modifying a 'not unsafe' handgun into non-roster status post-purchase.
In the past, there wasn't really much distinction between the two, but the laws changed a couple years ago resulting in the possibility that modifying a 'roster exempt' gun into a semi-automatic could be interpreted as illegal manufacturing of an unsafe handgun.
There aren't legal issues with modifying a 'not unsafe' handgun into non-roster status post-purchase.
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