Haven't you watched or read the news? Bump stocks turn "legal weapons into automatic weapons." I've watched it again and again, and so has the rest of the uneducated Americans that have no idea so they believe it. Then you have CNN with their retired Army General, who states you can fire it "single shot or full semi automatic"......... Scroll to 1 min in the video to see his vast experience.

https://www.cnn.com/videos/us/2018/0...man-dnt-ac.cnn