Trump says he wants to ban the ‘bump stock’, a controversial gun part that can essentially turn a semi-automatic rifle, like the AR-15, into a machine gun. This 3D animation shows how a bump stock essentially turns a semi-automatic rifle — like the AR-15 — into a machine gun. Subscribe: http://trt.world/subscribe Livestream: http://trt.world/ytlive Facebook: http://trt.world/facebook Twitter: http://trt.world/twitter Instagram: http://trt.world/instagram Visit our website: http://trt.world