The standard CornerShot can put a normal semi-automatic pistol in the front part of the weapon , with a remote linkage to the trigger mechanism in the rear part , it has a trigger pull of 21 newtons ( 4.7 lbf ) . The standard CornerShot mounts a normal semi-automatic pistol in the front part of the weapon , with a remote linkage to the trigger mechanism in the rear part , it has a trigger pull of 21 newtons ( 4.7 lbf ) .