Patent attributes
A gun barrel unit for a toy gun includes: an inner barrel and an outer barrel, the inner barrel is axially inserted in the outer barrel, at least one rotary member is provided between the inner and outer barrels to allow for rotation of the inner barrel with respect to the outer barrel, and at least one eccentric weight is fixed in the inner barrel. The inner barrel is pivotable and the inner barrel is provided with the eccentric weight, so that even when the gun is held in an inclined position, the inner barrel still can return to a non-inclined manner to ensure the ballistic trajectory stability when firing. Besides, an engaging assembly is provided at the rear end of the inner barrel, so that the inner barrel can still be fixed to the outer barrel in a fixed manner to facilitate ballistic trajectory adjustment.
