Originally Posted by labhound
On the fullsize PX4, the safety/decocker is already ambidextrous. The mag release can be moved to the right side. The slide stop cannot be moved to the right side of the gun, no place for the slide stop nor is there a notch in the slide on the right side. The PX4 Compact model comes with an ambi slide release.
I stand corrected, I forgot that only the compact ones had the reversible slide release.