APPARATUS AND METHOD FOR LOCKING A FIREARM TO PREVENT UNAUTHORIZED USE THEREOF

摘要

A firearm lock and a firearm locking method including a key-operated lock (100), which is lockingly engageable with an interior portion of a firing chamber (144) of a firearm. Said lock comprises: a cylinder lock body (100) including a plug (104) rotatable therewithin; an inner multiply grooved generally circular cylindrical portion (110) fixed to or integrally formed with a first end of said lock body (100); and an outer circular cylindrical portion (112) correspondingly multiply grooved generally circular cylindrical portion, fixed to or integrally formed with said plug (104) for rotation therewith between a locked orientation, wherein grooves (114) on said inner cylindrical portion (110) are arranged out of phase with corresponding grooves (116) on said outer cylindrical portion (112), and an unlocked orientation, wherein said grooves (114, 116) on said inner and outer cylindrical portions (110, 112) are mutually aligned.