Kevin, according to the law enforcement exemptions under California restrictions, high capacity magazines can be purchased, however they must be shipped to an FFL. See here, scroll to bottom of page. budsgunshop.com/feeds/state_reg/california_restrictions.pdf

Kevin, yes Sir they will. We appreciate your dedicated Service and stay safe! Cheers!

CALIFORNIA
LAW ENFORCEMENT EXEMPTIONS State of California ACTIVE LAW ENFORCEMENT officers and peace officers with proper credentials on file MAY purchase off-roster handguns. This exemption includes FEDERAL law enforcement officers residing or working in California. ●Law Enforcement (including federal) can purchase non-compliant ARs and so-called “assault pistols” as long as the firearm is being used for duty use only. Department letterhead required and must ship to a dealer with an “assault weapon” permit. ●Law Enforcement, Judges, and District Attorneys are able to have ammunition shipped directly to them with proper credentials on file. ●High capacity magazines can also be purchased, however they must be shipped to an FFL. Credentials need to be on file prior to shipment. ●Active LE are able to purchase stun guns, TASERs, defense spray, and batons. ●Certain entities (departments or city/county offices) and sworn officers (individuals) are eligible to purchase “off-roster” handguns. These entities/officers must have satisfactorily completed the firearms portion of a training course prescribed by the Commission on Peace Officer Standards and Training pursuant to CA Section 832. That expanded list of entities/officers can be found ​here.

YES, but they must be shipped to your FFL. CHECK HERE ( budsgunshop.com/feeds/state_reg/california_restrictions.pdf ) I hope this helps!