We know. You're the operatingest operator who ever operated. You can change magazines in the dark. While blindfolded. And both hands tied behind your back. But what about your, um, friend who has trouble hitting the release under stress?
Simply remove the old magazine release (make sure the firearm is unloaded before attempting any gunsmithing; while not necessary, separating the upper and lower receivers will add an additional level of safety to the procedure) and add the Magpul Enhanced release. Once installed, screw the extension onto the magazine release with a 3/32-inch hex wrench.