Although the can carry considerable disposable stores, its primary built-in weapon is the 30 mm Avenger Gatling gun. One of the most powerful aircraft cannon ever flown, it fires large depleted uranium armor-piercing shells.
Chinese Stealth Tech- many think China borrowed fighter technology. I also think it would be foolish not to use proven ideas. Plus if your designs can be taken the only main advantages are strategy and training. This where the majors have the edge.