Estima Lock
Foot-lock style attack that isolates the toes and foot with a figure-four grip, often from standing or open guard scrambles.
joint lock
Overview
Foot-lock style attack that isolates the toes and foot with a figure-four grip, often from standing or open guard scrambles.
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Safety Note
Apply slowly in training and release immediately on tap. Do not rip finishes.
Primary Targets
- Foot
- Ankle
Key Concepts
- Control the position before finishing
- Isolate the target cleanly
- Finish with steady pressure, not panic speed
Primary Entries
- From the related positions linked below
- During scrambles when the opponent leaves a limb or neck exposed
- As a chain finish when the first attack is defended
Defenses & Counters
- Expect hand fighting and posture resets before the lock settles
- Watch for bridges or frames that create space under your chest
- If the angle dies, transition instead of forcing a stalled finish
Follow-Ups
- Transition to a linked submission when they defend the primary finish
- Re-secure the control position if the submission breaks
- Advance position when the defense opens a better pin
Training Drills
- Positional entries with progressive resistance
- Finish-or-transition rounds from the main control
- Partner tap drills emphasizing early recognition
Related Techniques
Deepen your study with complementary positions and attacks.
Summary
Foot-lock style attack that isolates the toes and foot with a figure-four grip, often from standing or open guard scrambles.