BLAC-RAC’s design is the most Versatile, Compact Weapons Retention System available. Multiple Firearms, Multiple Locations, Multi-Purpose. Available in Electronic or Manual models, with Microprocessor Technology. The BLAC-RAC accommodates all weapons platforms, with a receiver adjustment to allow for slim and wide receiver firearms. Unique 380 degree swivel and 45 degree offset positioning, allows mounting, nearly anywhere! Blac-Rac is also Optics Friendly, for Scopes, Optics, Lights or Lasers, and Handles a 30 Round Magazine.