Abstract: A firearm safety mechanism having a self-contained locking mechanism incorporated into the magazine of a semi-automatic pistol which inhibits use of the firearm when a locking mechanism disarms the firing mechanism as well as locking the magazine in position so as to prevent unauthorized replacement. The firearm can be locked against unauthorized use and unlocked by an authorized user without resort to external accessories.

Abstract: A firearm safety mechanism having a self-contained locking mechanism incorporated into the magazine of a semi-automatic pistol which inhibits use of the firearm when a locking mechanism disarms the firing mechanism as well as locking the magazine in position so as to prevent unauthorized replacement. The firearm can be locked against unauthorized use and unlocked by an authorized user without resort to external accessories.

Abstract: A firearm safety mechanism having a self-contained locking mechanism incorporated into the magazine of a semi-automatic pistol which inhibits use of the firearm when a locking mechanism is disabled thereby preventing cartridges from moving through the magazine as well as locking the magazine in position so as to prevent unauthorized replacement. In a second embodiment a firearm safety mechanism for a revolver equipped with a cylinder incorporates a locking mechanism which inhibits cartridge from aligning with the firing mechanism and prevents the unauthorized removal of the cylinder. The locks include a selection structure preventing movement of the engagement structure from a locked position to an unlocked position upon receipt of predetermined selection criteria. The firearm can be locked against unauthorized use and unlocked by an authorized user without resort to external accessories.

Abstract: A gun lock assembly includes an engagement portion with a locked position in which a portion of the firing mechanism is operatively engaged to prevent firing of the firearm, and an unlocked position in which operation of the firearm is permitted. The lock preferably includes a lock housing with structure for attaching the lock housing to the firearm. An adaptor can be utilized to facilitate attachment of the lock to a variety of different guns. A preferred combination lock is disclosed with structure for altering the combination. An embodiment that is suitable for long arms is also disclosed. An adaptor plate can be provided with an lever which is moveable with operation of the lock to selectively engage a portion of the firearm to selectively permit or prevent operation of the firearm. Embodiments are disclosed where the lever is utilized to engage the drawbar of a firearm, the rebound slide of a firearm, or the hammer stirrup of the firearm.

Abstract: A gun lock assembly includes an engagement portion with a locked position in which a portion of the firing mechanism is operatively engaged to prevent firing of the firearm, and an unlocked position in which operation of the firearm is permitted. The lock preferably includes a lock housing with structure for attaching the lock housing to the firearm. An adapter can be utilized to facilitate attachment of the lock to a variety of different guns. A preferred combination lock is disclosed with structure for altering the combination. An embodiment that is suitable for long arms is also disclosed.

Abstract: A grip lock assembly for firearms includes a lock having a locked position preventing operation of the firearm, and an unlocked position permitting operation of the firearm. A portion of the lock, when in the locked position, is adapted to operatively engage a portion of the firing mechanism of the firearm to prevent operation of the firearm. The invention is quickly installed by replacing an existing grip of the firearm with grips according to the invention. The invention can be utilized with a number of different types of locks. A ratchet-type combination lock suitable for use with the invention is also disclosed.

Abstract: A grip lock assembly for firearms includes a lock having a locked position preventing operation of the firearm, and an unlocked position permitting operation of the firearm. A portion of the lock, when in the locked position, is adapted to operatively engage a portion of the firing mechanism of the firearm to prevent operation of the firearm. The invention is quickly installed by replacing an existing grip of the firearm with grips according to the invention. The invention can be utilized with a number of different types of locks. A ratchet-type combination lock suitable for use with the invention is also disclosed.

Abstract: A lock for a firearm is operable to engage and disengage a draw bar or trigger bar of the firearm, which connects the trigger to the hammer. The lock includes a lock member which, in the locked position, operatively engages the draw bar to move the draw bar out of engagement with the hammer. The firearm is thereby rendered inoperative. The lock member, in the unlocked position, permits the draw bar to engage the hammer in the usual manner to permit operation of the firearm. The lock member can be provided as part of a lock assembly which can be readily installed in the firearm, and in a construction which is resistant to tampering.

Abstract: A firearm safety mechanism includes a lock with engagement structure. The engagement structure has a locked position in which the engagement structure operatively engages a portion of the firing mechanism to prevent discharge of the firearm. The engagement structure also has an unlocked position permitting operation of the firing mechanism. The lock includes at least one push button adapted to disengage the lock and permit movement of the engagement structure from the locked position to the unlocked position upon the reception of a predetermined selection criteria. Method and apparatus for attaching this and other safety locks to firearms, particularly revolvers, is also disclosed. The firearm can be locked against unauthorized use and unlocked by an authorized user without resort to exterior accessories.