Here are pictures of the barrel. I can't find a mark anywhere and it's not chrome lined.
It is a nice barrel though. HRA Op-rod. TRW Bolt. SA trigger group. The guy I got it from said he got it new and only fired 20 rounds through it. I believe him.
The op-rod was coated in dried cosmoline as was the trigger group. I took down the gas piston and it hardly had any carbon on it at all.
It will probably be one I get rid of. It's just too nice for me to use. It is nearly pristine. My curse, I don't want to take a new gun and knock the new finish off.
It looks like the USGI parts are all new. They look like they just came form the factory.


