Patent ID: 7243452

Claim:
A firing mechanism for a small arm comprising: a housing; a trigger pivotably positioned in the housing about a trigger axis and including a latch having a lower latching groove and a lower control surface positioned in front of the latching groove; a trigger rod displaceably positioned within the housing and including a first end for retaining and releasing a biased firing pin; and an articulated lever pivotably connected to a second end of the trigger rod, and including an upwardly projecting catch that is engagable in the lower latching groove in the latch of the trigger in a cocked position, wherein the lower latching groove includes an oblique contact surface engagable by a front edge of the upwardly projecting catch, wherein the upwardly projecting catch comes into contact with the lower control surface of the trigger when the trigger is actuated; and wherein a resistance of the trigger can be adjusted by changing an angle of inclination of the oblique contact surface.