Magazines.  Not clips.  Gun autism aside any example of a lawful citizen using a firearm in self defense is good for the gun rights cause.  Anybody telling you they want to only ban a certain type of firearm is lying to you.  The end goal is a slow roll into complete confiscation.  Back before the assault weapons ban sunset handgun crime was all the talk.  Thankfully for us the ban wasn't made permanent and the liberals lost that foothold so they backed up.  If we let them have this handguns are next and then any rifle above .22lr. Next will be confiscation or damn near it.  You can own a gun in Britain but good luck going through that red tape.