No import marks on upper barrel area. I checked over and under and around gas tube and bayonet. I spoke to the shop where I got it from and asked if they knew anything about this rifle. This came from a large collection, over 1000, firearms. There were pistols and rifles from everywhere with no imports marks. I saw all this and wondered how it could be. Then I found out he was high up in the US Air Force. I feel confident about the no import marks and original condition of this rifle. The one picture shows two hardness testing dots on the rear sight block. You can see one dot in the pictures posted of the other 67' in above post. I have seen these testing dots before, but with all the new camera and internet stuff it s fun to and easy to magnify and post.