In Brazilian Jiu-Jitsu, among all submission techniques, arm locks are known to be the most dangerous ones, as they cause the most harm to the opponents if they are unable to break them or if they do not tap out in time.
There are multiple types of arm locks that BJJ fighters use during their training and competitions to make opponents tap out and win their fights. These arm locks not only help in winning BJJ competitions but are also quite useful for dealing with self-defense situations.
