The syringe contains an outer barrel a compressible inner barrel threading through a support ring inside the outer barrel and a plunger sealing the back of the outer barrel. The outer barrel has a hollow cylindrical body with an outer orifice at a front end. Inside the outer orifice a positioning ring is provided whose circumference is configured with parallel ribs so that a number of channels are formed. The inner barrel has a bellows structure capable of being compressed and stretched along the axial direction. A tubular inner orifice is configured at a front end of the bellows structure. The plunger has a cylindrical shape. On a front side of the plunger there is an axial chamber in the center surrounded by a push surface. Along the circumference of the plunger there is at least a circling rib. The syringe could be applied to an ordinary adhesive gun.
