a second opening 16 to receive a pin 17 the second spring 9 is connected to the lock element 8 to overcome the energy of the first sear element 3 to apply pressure to a trigger 5 to lock the trigger 5 thereby preventing the second sear element 4 from moving in a third direction c as shown in fig2 the second sear element 4 is prevented from moving as the hammer 2 and the first sear element 3 are prevented from moving in the first direction a and the second direction b thereby preventing any accidental firing of the gun the lock element 8 includes a cut out portion 7 of a generally rectangular configuration defined between a finger 20 extending from the plate 12 and the second opening 16 the cut out portion 7 is used to mechanically engage the bulge 6 of the second seal element 4 when the lock element 8 is in a locking position thereby preventing movement of the second sear element 4 a stopper 22 extends from the plate 12 to control movement of the lock element 8 rotatable about the pin 17 the second sear element 4 allows the first sear element 3 to rotate in a second direction shown at b in fig2 by virtue of propulsion through the first sear element 3 the second spring 9 is connected to the lock element 8 in order to overcome the energy of the first sear element 3 by means of applying pressure to the trigger 5 the trigger 5 is locked thereby.