California Magazine Capacity Limit

California Penal Code section 16740 defines a large-capacity magazine as an ammunition-feeding device capable of accepting more than 10 rounds, including a readily restorable or convertible device. Permanently altered 10-round devices, attached .22-caliber tubular magazines, and tubular magazines in lever-action firearms are excluded.

Section 32310 separately addresses manufacture, importation, keeping or offering for sale, giving, lending, buying, receiving, and possession. Because litigation has produced orders tied to acquisition dates and specific conduct, the statutory definition alone does not answer whether a particular magazine has protected provenance.

There is no federal magazine capacity limit; the 1994 federal assault weapons ban expired in 2004.

Scope: Detachable magazine round-count restrictions for handguns and long guns. States not listed have no capacity limit.