US Patent 7152773 Trigger selector for a nail gun

A trigger selector is used with a nail gun. The nail gun has a body and a safety. The body has a casing, a handgrip, an air passage and a valve. The trigger selector has a trigger, a selector sleeve, an enabling lever and a pin. The trigger has a recess and two slots. The selector sleeve is mounted slidably on the trigger and has two mounting holes corresponding to the slots in the trigger. The enabling lever is mounted pivotally in the recess, extends from the open top of the trigger, selectively aligns with the safety and aligns with the valve. The nail gun is adjusted a single shot or a semiautomatic mode by sliding the selector sleeve relative to the trigger.