Rifle and handheld gun magazine accessory for security

A rifle magazine device accessory, the accessory configured for placement in a rifle or gun comprising:

• a rectangular housing member having an inner surface, an outer surface, a top opening and a bottom opening, the housing member having an internal plate in contact with the inner surface and having a horizontal orientation parallel to the top opening;
• an interlocking mechanism located within the housing member including a center post or plunger member adapted to pass through an aperture of the internal plate and protrude from the top opening of the housing member upon actuation to block a bullet chamber of a rifle or gun, a circular spring member disposed about the center post member and bounded by the internal plate at a distal end of the spring member and at a proximal end of the spring member by a laterally protruding tab on the center post, the circular spring member adapted to provide an expanding force against the protruding tab when the center post protrudes from the top opening;
• and
• a base plate coupled to and supporting the center post member in a sliding relationship within the circular spring member and adapted to close the bottom opening, the base plate including a latch pin adapted to engage a retractable latch plate located within the housing member, the latch plate being actuated by a locking mechanism located within the housing below the internal plate.