Lockable safety for firearm

An auto-loading firearm with manual safety mechanism comprising:

• a frame defining a longitudinal axis;
• a slide supported by the frame for axial movement thereon;
• a hammer pivotably mounted on a rotatable hammer in supported by the frame;
• a trigger pivotably supported by the frame;
• a trigger bar operably coupled to the trigger and axially movable in the frame, the trigger bar including a first operating surface engageable with a corresponding second operating surface on the hammer for cocking and releasing the hammer;
• the trigger bar being movable between a firing position in which the first operating surface is axially aligned to engage the second operating, surface in response to pulling the trigger and a standby position in which the first operating, surface is not axially aligned with the second operating surface such that pulling the trigger will not cock the hammer;
• and
• a manual safety comprising a rotary-operated eccentric camming member fixedly disposed on the hammer pin and being rotatable via rotating the hammer pin, the camming member movably engaged with the trigger bar, the camming member extending and being elongated in a direction perpendicular to the hammer pin, the trigger bar being moved between the firing and standby positions via rotating the camming member;
• wherein manually rotating the hammer pin concomitantly rotates the eccentric camming member which engages and displaces the trigger bar downwards away from the hammer into the standby position.

A method for disabling the firing control mechanism of a firearm, the method comprising:

• providing a firearm including a frame, hammer mounted in the frame via a rotatable hammer pin including an elongated eccentric camming member fixedly disposed on the pin, and a trigger bar coupled to a trigger and movable therewith for cocking and releasing the hammer to discharge the firearm;
• axially aligning a first operating surface on the trigger bar with a corresponding second operating surface on the hammer, the trigger bar being in a firing position wherein pulling the trigger engages the first and second operating surfaces to cock and release the hammer;
• rotating the eccentric camming member having an eccentric portion by manually rotating the hammer pin;
• moving the first operating surface of the trigger bar out of axial alignment with the second operating surface by rotating the eccentric camming member with the hammer pin, the trigger bar being in a standby position wherein pulling the trigger does not engage the first and second operating surfaces to prevent cocking and releasing, the hammer.