To my knowledge all AR have right hand safety only. You can add an aftermarket on but cannot just swap from one side to the other. Unless I don't know something about the 22lr AR
The safety is held in place by a detent and spring that are found under the grip. Just loosen or remove the grip and switch the lever to the other side. The rear takedown pin is the same way, so be careful not to lose or bend the springs and detents when you put the grip back on.