I have no personal experience with that barrel, but High Standard AR parts have been more than satisfactory to me. High Standard's Houston operation was close to my home.
My friend Wayne Sandlin - formerly of Global Trades and later on his own Texas River Armory - was one of High Standard/Interarms contract AK builders. I'm certain he did builds with those barrels. I knew Wayne to be a competent AK gunsmith. I'd ask him but he passed away last year - only reason I reveal the contract building he did for them.