Measured the gas port with a caliper and it comes out to .080
If that's the case then it's a build gun.
UPDATE:
So as I was reassembling the rifle I decided to go over it again with a fine tooth comb and I think I found the issue. When I originally checked to see if the gas port was unobstructed I though that it was clearing the opening in the gas cylinder. Turns out it was partially blocked by the gas cylinder opening because the gas cylinder was sitting too far forward due to the front hand guard not being fitted properly, so I took about 1/32 off the back of the hand guard where it fits into the ferrule and I now have 100% clearance of the gas port.