SAFETY: Bicep Slicer targets the Bicep muscle and elbow joint. Risk: Bicep muscle tear or severe contusion. Release immediately upon tap.
The Bicep Slicer is a devastating compression lock that applies crushing pressure to the bicep muscle and hyperextends the elbow joint. This advanced submission works by trapping the opponent’s arm between your shin and forearm, creating a lever that compresses the bicep against the humerus bone while simultaneously hyperextending the elbow. Most commonly applied from the crucifix, truck, or modified mount positions, the bicep slicer is a technical submission that requires precise positioning and control. The compression creates intense pain in the bicep muscle belly, while the hyperextension threatens the elbow joint, creating a two-fold attack that is difficult to defend. This submission is particularly effective in no-gi grappling where the opponent cannot use gi grips to defend, and it serves as an excellent backup when traditional chokes or arm locks are unavailable. The bicep slicer’s effectiveness comes from its ability to attack an area that most grapplers do not regularly condition or defend, making it a high-percentage finish when the proper positioning is achieved. Understanding the mechanical advantage required and the precise angles needed separates successful application from ineffective attempts.
Category: Compression Type: Bicep Compression Lock Target Area: Bicep muscle and elbow joint Starting Position: Crucifix Success Rate: 52%
Safety Guide
Injury Risks:
| Injury | Severity | Recovery Time |
|---|---|---|
| Bicep muscle tear or severe contusion | High | 3-6 weeks for muscle damage, up to 12 weeks for severe tears |
| Elbow hyperextension or ligament damage | High | 4-8 weeks for moderate sprains, 3-6 months for severe ligament tears |
| Radial nerve compression | Medium | 1-3 weeks for temporary nerve irritation |
Application Speed: EXTREMELY SLOW - 5-7 seconds minimum with constant communication
Tap Signals:
- Verbal tap or verbal distress signal
- Physical hand tap on opponent or mat
- Physical foot tap on mat
- Any vocalization of pain or distress
- Frantic body movement indicating distress
Release Protocol:
- Immediately release all pressure on the bicep/elbow
- Remove the shin from behind the opponent’s elbow
- Release any grip controlling the wrist
- Allow the opponent to straighten their arm naturally
- Check with partner about their condition before continuing
Training Restrictions:
- Never apply sudden or explosive pressure
- Never use full competition speed in training
- Always maintain verbal communication during application
- Never practice on beginners until they understand tap urgency
- Do not apply this submission if opponent has existing elbow or bicep injuries
- Always ensure training partner has clear tap access with free hand
Outcomes
| Result | Position | Probability |
|---|---|---|
| Success | game-over | 55% |
| Failure | Crucifix | 25% |
| Counter | Half Guard | 20% |
Attacker vs Defender
| Attacker | Defender | |
|---|---|---|
| Focus | Execute and finish | Escape and survive |
| Key Principles | Create maximum leverage by using your shin as a fulcrum agai… | Straighten the trapped arm immediately—extending the elbow r… |
| Options | 7 execution steps | 4 defensive options |
Playing as Attacker
Key Principles
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Create maximum leverage by using your shin as a fulcrum against the back of the opponent’s elbow
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Control the wrist to prevent the opponent from straightening their arm and escaping
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Maintain tight connection between your body and opponent’s trapped arm to prevent space creation
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Apply pressure progressively in training, never suddenly or explosively
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Position your shin perpendicular to the opponent’s arm for maximum compression
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Use your bodyweight and hip pressure to increase the submission force, not just arm strength
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Secure dominant position control before attempting the submission to prevent counters
Execution Steps
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Secure dominant control position: From the crucifix, truck, or modified mount, establish complete control over the opponent’s body. En…
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Isolate the target arm: Identify the arm you will attack (typically the one closest to your legs or most exposed). Use your …
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Insert shin behind elbow: Slide your shin behind the opponent’s elbow joint, positioning it perpendicular to their forearm. Yo…
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Secure wrist control: Grip the opponent’s wrist firmly with both hands if possible, or with one hand while using the other…
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Close the angle and apply compression: Pull the opponent’s wrist toward your chest while simultaneously pushing your shin deeper behind the…
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Add hip pressure for finish: Once the compression is established, use your hips to drive additional pressure into the submission…
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Maintain position until tap or transition: Hold the submission with steady pressure until your partner taps. Do not pump or pulse the submissio…
Common Mistakes
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Applying the submission too quickly or explosively in training
- Consequence: High risk of serious bicep tear or elbow injury to your training partner
- Correction: Always apply bicep slicers slowly and progressively, taking a minimum of 5-7 seconds to reach full pressure. Maintain constant verbal communication with your partner and release immediately upon tap.
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Positioning the shin across the forearm instead of behind the elbow
- Consequence: Little to no submission pressure, allowing easy escape
- Correction: Ensure your shin is directly behind the elbow joint, perpendicular to the opponent’s arm. The back of their elbow should be pressed into your shin bone, not their forearm or bicep.
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Failing to control the opponent’s wrist adequately
- Consequence: Opponent can straighten their arm and escape the submission completely
- Correction: Establish firm wrist control before applying pressure. Use a two-handed grip when possible and pull the wrist toward your chest to maintain the bent arm position required for the submission.
Playing as Defender
Key Principles
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Straighten the trapped arm immediately—extending the elbow removes the fulcrum and eliminates the compression mechanism entirely
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Fight wrist control as the first priority since the attacker cannot finish without controlling the wrist to maintain the bent arm position
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Recognize the setup early by monitoring for shin placement behind the elbow, which signals the bicep slicer is being established
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Tap early rather than late—the bicep slicer has a narrow window between pressure and injury, and heroic defense risks serious muscle or ligament damage
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Use the free arm actively to push the attacker’s shin away from behind the elbow before the fulcrum is fully seated
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Create space through hip movement to reduce the attacker’s chest pressure, which weakens the overall compression force
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Address the positional disadvantage first—escaping crucifix or truck control removes the bicep slicer threat entirely
Recognition Cues
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Opponent’s shin begins sliding behind your elbow joint while they maintain wrist or hand control—this is the primary setup indicator
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You feel your arm being pulled toward the opponent’s chest while their leg positions across or behind your arm, creating a closing sensation around the elbow
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From crucifix or truck position, the opponent shifts focus from neck attacks to isolating and bending one of your arms while repositioning their legs
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Increasing pressure on the back of your elbow from a bony surface (shin bone) combined with wrist manipulation pulling your hand toward the opponent’s body
Escape Paths
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Arm straightening escape: Drive the elbow toward full extension before the fulcrum locks, then use the extended arm to frame and escape the underlying dominant position through hip escape or bridging
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Shin displacement escape: Use the free hand to push the attacker’s shin away from behind the elbow while simultaneously shrimping the hips to create space, then work to recover guard or turtle position
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Rolling escape: When the attacker’s base is compromised during the submission attempt, roll toward them to disrupt both the bicep slicer and the dominant position, fighting to turtle or half guard during the scramble
From Which Positions?
Match Outcome
Successful execution of Bicep Slicer leads to → Game Over
All submissions in BJJ ultimately converge to the same terminal state: the match ends when your opponent taps.