Arm-Thread Compressor

SubFamily

フロントヘッドロックチョーク(Furonto Heddorokku Chōku)

Transliteration

Translation: Front Headlock Choke (katakana loanword)

Overview

The D'Arce choke from turtle is a species where the head-and-arm strangle is applied against an opponent who has assumed the turtle (all-fours) position. ^[1] The attacker positions to the side of the turtled opponent, slides the near arm under the chin and through the gap between the neck and the far arm, threading until a figure-four or palm-to-palm grip can be locked on the far side. ^[1],[2] The turtle position exposes the neck-and-arm channel because the opponent's elbows are typically planted on the mat, creating a natural gap for the D'Arce thread. ^[2] Once the grip is secured, the attacker rolls the opponent to their side or sprawls heavy to complete the compression. ^[2],[3] This entry is particularly common in wrestling-heavy grappling where opponents frequently turtle to avoid guard passes. ^[3]

Also known as

Arm-In Head-and-Arm Chokes^[1]Threading Chokes^[2]

Used in

BJJ Judo Submission Grappling MMA Sambo

History & Origin

Attacking the turtle with D'Arce chokes developed as a competitive counter to opponents who turtled defensively rather than conceding guard passes or back takes. ^[1],[2] In wrestling-heavy MMA and no-gi grappling, the turtle became a common defensive posture, and the D'Arce emerged as one of the most effective submissions against it. ^[1] This entry point was refined through competition in the late 2000s and early 2010s as front headlock attacks from turtle became increasingly systematized. ^[1],[2]

Effectiveness

Arm-thread compressor techniques (D'Arce, anaconda) are among the most effective front headlock submissions — they use the opponent's own shoulder as a compression surface, requiring less strength than direct forearm chokes. ^[1]

Lineage

The arm-threading principle appears in catch wrestling (arm-in headlocks) and was systematised in BJJ by Milton Vieira (anaconda) and Joe D'Arce (D'Arce choke). Danaher's front headlock system further organised the subfamily. ^[1]

Competition Record

Arm-thread compressors dominate front headlock submission statistics at ADCC and no-gi competition. The D'Arce and anaconda together account for a significant percentage of front headlock finishes. ^[1]

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Biomechanical Mechanism

Primary Action — Bilateral compression of the carotid arteries — restricts blood flow to the brain, causing unconsciousness within seconds

Joints Involved — Cervical spine (lateral flexion), glenohumeral joint of the trapped arm (if arm-in), nuchal region

Force Vector — Lateral squeeze creates inward pressure on both sides of the neck simultaneously

Choking Mechanism — Vascular strangle — occludes carotid arteries and jugular veins, distinct from airway (tracheal) chokes

Position & Entry

From top half guard — Thread the arm under opponent's far arm and around the neck, lock the figure-four behind their shoulder, sprawl and squeeze

From side control — Opponent turns in, thread the arm under their armpit and around the neck, connect hands and apply pressure

From front headlock — Snap-down creates access, thread arm under the far armpit, circle to the choking side and lock

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Ratings

Danger Rating

Risk of injury to the person this technique is applied to

Extreme9/10

Arm-thread chokes (D'Arce/Brabo) compress the neck using the arm threaded under the opponent's armpit

Difficulty

Skill level needed to execute this technique reliably

Advanced

Competition Legality

Whether this technique is allowed under major competition rule sets

Illegal

— FIAS Sport Sambo — All chokes prohibited in Sport Sambo

FIAS International Sambo Competition RulesPDF

Legal

— IBJJF — Legal at all belt levels, gi and no-gi — chokes a...

IBJJF Rules Book v6.0, June 2024PDF

— shime-waza

IJF Sport and Organisation Rules 2025, Article 27PDF

— ADCC — Legal

ADCC Rules Update, April 2025PDF

— Unified MMA — Legal — choke submissions are among the mos...

Unified Rules of MMA, August 2025PDF

— FIAS Combat Sambo — Legal

FIAS Combat Sambo RulesPDF

Training Notes

✓The arm-thread compressor subfamily encompasses front headlock chokes where the attacking arm threads through the space between the opponent's neck and arm — creating arm-triangle compression from the front (Danaher, Front Headlock System: Go Further Faster, 2019)

✓The threading concept: the arm passes through the neck-arm gap (either over the arm and under the neck, or under the neck and over the arm) to create a triangular choking structure

✓This subfamily includes the D'Arce, anaconda, and related arm-in strangles — all share the principle of threading the arm to trap the opponent's shoulder as a compression surface

✓The arm-thread compressor is biomechanically efficient: the opponent's own shoulder provides one side of the bilateral compression, reducing the force the attacker must generate

✓Common entries: front headlock, sprawl, half guard top, guard passing — any position where the opponent's head and arm are accessible for threading

✓The threading direction determines the specific technique: under-neck threading creates the D'Arce family, over-neck threading creates the anaconda family

✓The arm-thread compressor principle is fundamental in no-gi grappling: without collar grips, threading the arm to use the opponent's body for compression is the primary strangling mechanism

Common Mistakes

!Threading without first controlling the opponent's head — head control (front headlock, crossface) must be established before the arm threads through

!Not trapping the near arm inside the loop — the shoulder compression requires the arm inside; threading around the neck alone creates a headlock, not an arm triangle

!Threading too shallow — depth is critical; the arm must pass far enough to connect the hands (figure-four or gable grip)

!Not understanding the two threading directions — under-neck-over-arm (D'Arce) and over-neck-under-arm (anaconda) create different mechanical advantages; know which you're applying

!Attempting from bottom position — arm-thread compressors work from top or neutral position; from bottom, the threading lacks the necessary gravitational advantage

!Not adjusting body position after threading — hip angle, sprawl depth, and chest pressure all affect the compression; threading alone doesn't finish the choke

!Forcing the thread against a tight-elbowed opponent — if the neck-arm gap is closed, use snap-downs or other attacks to open it before threading

Related Techniques

Escape — defensive technique to relieve choking pressure and recover position Tap (Submission Signal) — the safety mechanism indicating the technique is effective

Counter Techniques

Tuck Chin — protect the neck by lowering the chin to prevent the choke from sinking Two-on-One Grip Fight — use both hands to strip the choking grip before it locks Turn Into — rotate toward the choking arm to relieve carotid pressure Posture Up — straighten the spine and create distance to break the choking angle

Setup Chain

1Achieve Controlling Position — secure the position from which the choke is applied

2Isolate the Neck — clear defending hands and establish access to the throat

3Set the Grip — lock the choking configuration (arm, lapel, or leg placement)

4Apply Pressure — squeeze to compress the carotid arteries for the finish

Sources & References

Primary Source

Wikipedia ja (フロントチョーク); Japanese BJJ community

1WebsiteWikipedia Japanese

Japanese Wikipedia — martial arts technique articles

2OtherJapanese Combat Sports Katakana Convention

Standard katakana transliteration of Western martial arts terminology (外来語) — used in Japanese MMA, boxing, and BJJ communities

3CitationWikipedia ja (フロントチョーク); Japanese BJJ community

Japanese terminology sourced from Wikipedia ja (フロントチョーク); Japanese BJJ community

Community

Athletics

Requires

long arms for threading under armpit and around neck

Favours

longer limbs, lean build

Key muscles

biceps, deltoids, forearm flexors, core (for sprawl pressure)

Sub-techniques

DArce Choke (Brabo)

Genus

The D'Arce choke (also called the Brabo choke) is a front headlock arm triangle where the attacker threads one arm under the opponent's armpit, across the neck, and locks a figure-four grip with the other arm around the head. [1,2] The threaded arm compresses one carotid while the opponent's trapped arm wedges against the other side. [1,3] The D'Arce is typically entered from half guard top, side control, or when the opponent turtles, and is finished by sprawling the hips to tighten the compression. [1,4] It is the mirror-image of the anaconda choke — in the D'Arce, the arm goes under the armpit first. [1,5]

3 species·7 techniquesExplore

Frequently Asked Questions

How does the Arm-Thread Compressor work?

The D'Arce choke from turtle is a species where the head-and-arm strangle is applied against an opponent who has assumed the turtle (all-fours) position. The attacker positions to the side of the turtled opponent, slides the near arm under the chin and through the gap between the neck and the far arm, threading until a figure-four or palm-to-palm grip can be locked on the far side.

Where does the Arm-Thread Compressor come from?

Attacking the turtle with D'Arce chokes developed as a competitive counter to opponents who turtled defensively rather than conceding guard passes or back takes. In wrestling-heavy MMA and no-gi grappling, the turtle became a common defensive posture, and the D'Arce emerged as one of the most effective submissions against it.

Is the Arm-Thread Compressor legal in competition?

IBJJF: legal — Legal at all belt levels, gi and no-gi — chokes are the safest submission cat…; IJF: legal — Legal (shime-waza) — strangulation techniques are one of three permitted subm…; ADCC: legal — Legal; Unified MMA: legal — Legal — choke submissions are among the most common finishes in MMA; FIAS Sport Sambo: banned — All chokes prohibited in Sport Sambo; FIAS Combat Sambo: legal — Legal

How dangerous is the Arm-Thread Compressor?

Danger rating 9/10. Arm-thread chokes (D'Arce/Brabo) compress the neck using the arm threaded under the opponent's armpit

How do I set up the Arm-Thread Compressor?

The standard setup chain: Achieve Controlling Position → Isolate the Neck → Set the Grip → Apply Pressure.

How do I defend against the Arm-Thread Compressor?

Standard counters include: Tuck Chin — protect the neck by lowering the chin to prevent the choke from sinking / Two-on-One Grip Fight — use both hands to strip the choking grip before it locks / Turn Into — rotate toward the choking arm to relieve carotid pressure / Posture Up — straighten the spine and create distance to break the choking angle.

What are the variants of the Arm-Thread Compressor?

Common variants: Standard D'Arce (arm threaded under the far armpit and around the neck fro…); Marce (short choke) (tighter, shorter threading for compact body types); Standing D'Arce (applied during a scramble without going to the ground); D'Arce from turtle (threaded as the opponent attempts to re-guard from turtle…).

How effective is the Arm-Thread Compressor in competition?

Arm-thread compressors dominate front headlock submission statistics at ADCC and no-gi competition. The D'Arce and anaconda together account for a significant percentage of front headlock finishes.

What are common mistakes when doing the Arm-Thread Compressor?

Top errors to watch for: Threading without first controlling the opponent's head — head control (front headlock, crossface) must be establishe… / Not trapping the near arm inside the loop — the shoulder compression requires the arm inside; threading around the ne… / Threading too shallow — depth is critical; the arm must pass far enough to connect the hands (figure-four or gable grip) / Not understanding the two threading directions — under-neck-over-arm (D'Arce) and over-neck-under-arm (anaconda) crea….

What are other names for the Arm-Thread Compressor?

The Arm-Thread Compressor is also known as Furonto Heddorokku Chōku, Arm-In Head-and-Arm Chokes, Threading Chokes.

furonto heddorokku ch ku submission choke and strangle lock front headlock choke arm thread compressor arm in head and arm chokes threading chokes