What in the hell are you talking about? Gun deaths in America with fully automatic weapons is virtually nonexistent
There have been three documented criminal shootings with automatic weapons since 1984. 18 June 1984, Alan Berg, Denver, Colorado: Assassinated by members of the white supremacist group The Order with a semiautomatic MAC-10 submachine gun illegally converted to full automatic fire. 15 September 1988, Patrolman Roger Waller, Dayton, Ohio: Used his registered MAC-11 chambered in .380 to kill police informant and local drug dealer Lawrence Hileman. 24 April 1997, Larry Phillips, Jr. and Emil Mătăsăreanu, North Hollywood, California: The North Hollywood Shootout or “Battle of North Hollywood.” Used two legal gas-operated semiautomatic rifles (a Bushmaster XM-15 and a Heckler & Koch HK-91) illegally converted to full automatic in an attempt to rob the North Hollywood Bank of America branch. 12 police officers and 8 civilians were injured. The two perpetrators both died. There is a recurring rumor of “a doctor murdering his wife in Ohio in 1992” with an unidentified “automatic weapon.” This claim is unsubstantiated and therefore excluded from this answer. There has been one accidental death from an automatic weapon since 1986. 25 August 2014, Arizona Last Stop Gun Range (aka “Bullets and Burgers”), White Hills, Arizona: Charles Vacca was instructing a nine-year old girl in firing a registered range-owned Uzi submachine gun. The girl lost control of the Uzi and Charles Vacca was struck in the head and killed by a stray round.
They are out there an available, but, they are not desirable. If I were going into a gun battle, I would want semi auto over fully auto all day everyday.
Guess thats why The US military and militaries around he world doesn't use them...ohh wait They aren't desirable because of the penalty that comes with being caught with one.