You don't want to be on the receiving end of this weapon. Getting shot is bad enough (I don't know for sure... have you been shot and survived?) but for those close range encounters, those equipping the Impaler AR have an additional method of nullifying the enemy -- putting that namesake to use and impaling their enemy with the attached knife on the end of this assault rifle. So just stay far, far away if you want to survive... and even that may not be enough!

(Photo credit: La Petite Brique)