Very disappointed with this product. The first one I ordered didn't work. Sent back for replacement and the new one failed after four tubes of construction glue. I fired the gun at 100psi, well below the 120psi compression rating. In both cases the connection between the small hose from the handle to the barrel at the end of the barrel failed. This connection consists of a very thin pressed-in compression fitting that just isn't up to the task. Very bad design. I attempted to repair the gun myself by reinforcing this cheap compression fitting with epoxy. So far it's holding up, but it's very frustrating wasting your time fixing a brand new instrument. Not recommended.