[smokingfrog]

If an F-35 ever finds itself in a dogfight, either something went wrong or it ran out of missiles.

A nose mounted cannon would be nice for a dogfight but would ruin it's low radar signature.

[Hulka]

Then add a gun like the F-22, pull the trigger and the internal gun pops-out and fires and then quickly closes. . . keeping its stealth capability.