A toy gun
assembly structure includes a gun frame, a hand guard sleeve, a
gun barrel and a hand guard. The hand guard sleeve connected to the gun frame includes an inner
insertion portion and an outer mounting portion. One end of the hand guard sleeve faces toward another end to define an axial direction. The inner
insertion portion and the outer mounting portion respectively include first and second guiding members along the axial direction. The
gun barrel is inserted into the inner
insertion position. An outer perimeter of the
gun barrel includes first corresponding guiding members slidably attached to the first guiding members correspondingly. The hand guard is mounted onto the outer mounting portion. An inner perimeter of the hand guard includes second corresponding guiding members slidably attached to the second guiding members correspondingly. Therefore, easy assembling and time saving for the gun
assembly structure can be achieved.