Sorry, Already shipped it back. The guide rod appeared to be bent. If it was it was , only slightly.The guide rod is steel in this gun. It would not go back into position on the barrel as the spring would not compress at all. Gun only has a couple of hundred rounds through it. I was very happy with the gun and it has been flawless until re-assembly. I may have done something to the rod when the spring jumped out of place during re-assembly. Had a he** of a time getting the slide back off. :???: