This magazine lock kit is designed for the HK USC/UMP rifles This fixed-magazine lock kit allows the operator to drop the magazine by inserting the included key into the base of the mag catch and pivoting it forward.
This magazine lock has not been approved by the Californa DOJ.
This magazine lock is designed to conform to the law as written in CA Penal Code 978.20(a) which defines: "detachable magazine" means any ammunition feeding device that can be removed readily from the firearm with neither disassembly of the firearm action nor use of a tool being required. "A bullet or ammunition cartridge is considered a tool."
