Check out this martial arts tutorial video that demonstrates how to do Brazilian Jiu-Jitsu arm bars. An arm bar is a type of submission in jujitsu. Get expert tips and advice on martial arts and grappling in this video. There are many variations of this, but this video provides instruction on a simple one from the guard position. Practice your Brazilian Jiu-Jitsu skills and techniques and improve your arm bars with this tutorial video.