PEN §30610: (a) Any person who, within this state, possesses any .

(a) Any person who, within this state, possesses any .50 BMG rifle, except as provided in this chapter, shall be punished by a fine of one thousand dollars ($1,000), imprisonment in a county jail for a period not to exceed one year, or by both that fine and imprisonment. (b) Notwithstanding subdivision (a), a first violation of these provisions is punishable by a fine not exceeding five hundred dollars ($500) if the person was found in possession of no more than two firearms in compliance with Section 30905 and the person satisfies all of the following conditions: (1) The person proves that he or she lawfully possessed the .50 BMG rifle prior to January 1, 2005. (2) The person has not previously been convicted of a violation of this article. (3) The person was found to be in possession of the .50 BMG rifle within one year following the end of the .50 BMG rifle registration period established pursuant to Section 30905. (c) Firearms seized pursuant to this section from persons who meet all of the conditions in paragraphs (1), (2), and (3) of subdivision (b) shall be returned unless the court finds in the interest of public safety, after notice and hearing, that the .50 BMG rifle should be destroyed pursuant to Sections 18000 and 18005. Firearms seized from persons who do not meet the conditions set forth in paragraphs (1), (2), and (3) of subdivision (b) shall be destroyed pursuant to Sections 18000 and 18005.