Striking pin for nail gun, nail shooting unit and nail gun

The utility model relates to the field of decoration tools, in particular to a firing pin for a nail gun, a nail shooting unit and the nail gun. A firing pin for a nail gun is arranged in the nail gun with a firing pin channel, and comprises a firing body part, a firing pin body, a driving part and a driving part, the impacting part is arranged at one end of the body impacting part and is used for impacting gun nails; the driving connecting part is arranged at the other end of the collision body part, a long-strip hole is formed in the driving connecting part, and the long-strip hole is used for being connected with the energy storage assembly through a pin; the length direction of the long-strip-shaped hole is consistent with the moving direction of the firing pin, and the length of the long-strip-shaped hole is larger than the diameter of the pin. Due to the design of the long-strip-shaped hole, the moving stroke of the firing pin is smaller than that of the energy storage component, and in other words, hig