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Arm Triangle

Quick Introduction​

The arm triangle uses your opponent's own shoulder against them — their trapped arm creates one side of the choke, your arm the other. Walk to a perpendicular angle and squeeze shoulder-to-head for a tight blood choke. Works from side control, mount, and north-south.

Position Overview​

From: Side Control (primary), Mount | Finish: Blood choke via arm + shoulder compression

From Side Control (Classic)​

  1. From side control, trap their far arm across their own neck (push it or wait for them to frame)
  2. Slide your arm deep around their exposed neck
  3. Connect hands — gable grip or grab your own bicep (RNC-style)
  4. Walk your body toward their head until you're perpendicular
  5. Squeeze your shoulder into their ear/head — eliminate all space
  6. Drive weight forward while squeezing

Key detail: Walking perpendicular is non-negotiable. The angle creates the compression. Straight-on won't finish.

From Mount​

  1. From mount, they frame against your neck with their arm
  2. Trap that arm across their neck by dropping your head to the opposite side
  3. Lock your hands around their neck (their arm trapped inside)
  4. Fall to the side (toward their trapped arm)
  5. Walk perpendicular and finish with squeeze

From North-South​

  1. From north-south, thread arm under their neck
  2. Their near arm gets trapped as you rotate
  3. Lock hands and walk to perpendicular
  4. Same shoulder-to-head squeeze finish

Core Principles​

  1. Their arm does half the work — their shoulder compresses one carotid
  2. Walk perpendicular — the angle creates the choke; no angle = no finish
  3. Shoulder-to-head, not arms-only — your shoulder drives into their head
  4. Patience with the walk — small steps, maintain connection
  5. Drive forward — forward pressure plus squeeze finishes it

Common Mistakes​

MistakeFix
Not walking perpendicularSmall steps toward their head until 90° angle
Arms-only squeezeDrive shoulder into their head; use body weight
Far arm not trappedEnsure their arm is across their own neck before locking
Staying too close (no angle)Walk until you feel the choke tighten

Next Steps​

  1. Side Control - Master the position for setups
  2. Rear Naked Choke - Similar mechanics from back
  3. Guillotine - Related head-and-arm choke family