Arm Triangle Choke: Head and Arm Submission

Setting Up the Arm Triangle

The arm triangle typically begins when your opponent pushes against your chest or tries to frame while you are in mount or side control. Trap their arm across their own neck by using your head and chest to pin their elbow and force the arm flat. Your arm slides under their neck while their trapped arm acts as the second blade of the choke. The key detail is getting their arm close to their own neck — the more their shoulder is pressed into the side of their neck, the tighter the choke. Transition to side control on the opposite side of the trapped arm, as this tightens the choke dramatically by using their own body weight against them.

The Side Switch and Finishing Mechanics

The critical detail of the arm triangle is always moving to the side of the trapped arm. When you trap the right arm, walk your body to their right side. This causes their shoulder to drive deeper into their own carotid artery. Clasp your hands together with a gable grip or your choking hand gripping your own bicep. Keep your elbow tight and drive your shoulder into the side of their neck while also squeezing through with your arm.

• Always move to the side of the trapped arm for maximum pressure
• Their shoulder does half the work — position matters more than strength
• Flatten them out on their back; a turned opponent can relieve pressure

Troubleshooting a Loose Arm Triangle

If the choke feels loose, the most common cause is the opponent's trapped arm not being tight enough against their own neck. Use your head or chest to walk their elbow toward their centerline. Another issue is allowing them to turn toward you — flatten them out by posting your leg and dropping your chest weight. If they continue to resist, you can transition to an Americana or kimura on the trapped arm, or look for the mounted triangle. The arm triangle is a positional submission — good position and patience beats pure squeezing strength every time.