Hammerlock - Martial Arts Joint Lock Technique

This page provides details for the Hammerlock. This joint lock focuses on the shoulder. The hammerlock is often used as a law enforcement restraining/"come along" technique. It is also used in grappling martial arts such as Mixed Martial Arts.

For information on other joint locks (i.e. elbow locks), please visit the main Joint Locks section.

Instructions for Technique

• An aggressor's arm is bent behind his back.
• The aggressor's arm is pushed upwards toward the neck.
• This will place pressure on the aggressor's shoulder joint.