Revolver-safety lock mechanism

A revolver is provided that includes a frame, a barrel, a cylinder, a hammer, a trigger, and a safety lock mechanism. The safety lock mechanism includes a lockarm and a lockarm actuator. The hammer includes a normal slot and a lock slot. The lockarm includes a cam surface and hammer post, and is pivotally mounted relative to the frame. The lockarm actuator is disposed in the frame. The lockarm actuator includes a head and a cam, and the cam is aligned with the cam surface of the lockarm so as to be engageable with the cam surface. The lockarm actuator can be positioned in a safety-off condition in which the hammer post of the lockarm is received within the normal slot of the hammer and the hammer is operable. The lockarm actuator can also be positioned in a safety-on condition in which the hammer post is received within the lock slot and the hammer is inoperable.