Looks to me like you got it, Johnny, from also checking Wikipedia
I was thinking of a Naval gunfighter conversion, but my archives got buried, and it might have been the Phantom as well.
Tom T
I mean, they had the b___s to put an auto-loading cannon into the door of an internal munitions-bay door to counteract the Russian "Close-in-Combat" philosophy which prefers the gun over the rocket that they trained the NV pilots use in the Soviet designed Mig's.
It was a cool design-it wasn't visually there to the 'Cong driver, (U.S. pilot thinks: "Lessee, close in, push button, swing out, prepare to fire-_____") then, Mig driver thinks, "Where did that come fro_.............???????"