The Chinese Are Matching U.S. Ingenuity When it Comes To Fighter Jets

China’s New Stealth Fighter’s Missile Launch Rails Prove Beijing Can Improve U.S. Technology -- The Aviationist

In order to preserve their stealthiness and keep the RCS (Radar Cross Section) as low as possible, radar-evading planes rely on weapons bay: bombs and missiles to be fired are kept inside the bays until it’s time to use them.

For instance, the F-35 can carry one AIM-120D (AIM-120C8), on a trapeze : when needed, the BVR (Beyond Visual Range) missile is lowered into the airstream on the open bomb bay door, and ejected.

Read more ....

Update #1: First pics: China's J-20 stealth fighter armed with a missile -- Foreign Policy
Update #2: The Chinese 5th Generation Fighter Has Some Truly Clever Engineering -- Business Insider

My Comment: They are not only showing their ingenuity, but I suspect that when it comes to manufacturing the plane they will .... with time and experience .... do it quickly and cheaply.