Top Mir Lock

What This Is

The top Mir lock is the Mir lock taken from a pin. The bottom player frames with the near arm, that arm is overhooked above the elbow, folded across the attacker’s chest with the elbow bent at roughly a right angle, clasped there, and turned up and away. The shoulder runs out of rotation and the elbow takes a torsional load at the same time.

The finish is identical to the guard-bottom version — the overhook, the fold, the clasp and the turn do not change. What changes is who is offering the arm and what a failed attempt costs. From underneath, a Mir lock that does not close usually returns the attacker to a guard they now have to rebuild. From a pin it returns them to the pin, which is why this half of the technique is the cheaper one to hunt.

It shares its position set with the top shotgun armbar, and the pairing is worth learning as a pair: both read the same framing arm from the same three pins, and the choice between them is decided by whether that arm arrives straight or bent. A straight arm is the shotgun armbar’s; a bent one is this.

Safety First

Apply as a graduated turn, never as a snap. The defender is underneath a pin and has less room to signal than a guard player does, so the tap can arrive late through no fault of theirs.

The Invariant in Action

An arm held in front of your own body is inside your own defensive system. An arm folded onto someone else’s chest, underneath their weight, is not.

Crush the arm to the chest, then clasp, then turn. Turning before the clasp closes gives the defender the space to extend into, which is the escape this technique is most often lost to.

Hold the shape with the arms and supply the movement with the body. If the finish feels like a strength contest, the overhook is too low or the clasp has not closed.

Setup and Entry

From Knee on Belly

The most reliable of the three. A defender under knee on belly frames hard to relieve the pressure, and a framing arm is an offered arm. Overhook it above the elbow, fold it across your chest, clasp, and shift the hips back as you turn. The same read produces the top shotgun armbar when the arm comes out straight.

From North-South

The attacker is already oriented across the arm’s line, which makes the fold short and the turn natural. The defender’s arms are usually working to frame on the hips, so the near arm is presented without much persuasion.

From Side Control

The least reliable of the three, because side control offers the arm less consistently than the other two — a defender who keeps the elbow tight simply does not present it. Available whenever they push at the hip or reach for an underhook and do not arrive.

From a Denied Underhook

Wherever the arms are fighting, one player’s failed underhook is the other’s overhook. An arm that reached and did not arrive is already high, already near your chest, and already folded in the right direction.

The Mechanics

The overhook goes above the elbow. Taken on the forearm it holds a lever the shoulder can still rotate underneath; taken high, near the armpit, it fixes the upper arm. This is the single detail that decides whether the technique works.

The fold crushes the arm to your chest. Elbow bent at roughly a right angle, no gap. Your chest is the fulcrum, and a folded arm held away from your body turns freely.

The clasp closes the structure. A gable grip, or a hand on your own hand — nothing grips the defender. Arm, chest and grip become one unit that turns together.

The turn goes up and away, powered by the hips. Shift the hips back as the clasped arms lift and rotate outward. Expressed the other way: the wrist end is drawn back while the elbow end is pressed down, two ends moving in opposite directions around a fixed middle.

Keep the elbow bent. A straightening arm escapes into an armbar problem and out of this one. Maintain chest pressure throughout rather than trading it for rotation.

Position Requirements

• Knee on Belly — the most reliable entry; the pressure produces the frame.
• North-South — already oriented across the arm’s line.
• Side Control — available when the near arm frames or reaches.
• An overhook above the elbow — the gating requirement. Below it the shoulder still rotates.
• A bent arm — roughly a right angle. A straight arm is the top shotgun armbar instead.

Defence and Escape

★ Deny the overhook, not the arm’s shape. This attacks a bent arm, so the usual arm-defence reflex of tucking and folding the elbow does not help and is what the attacker is waiting for. Win the arm battle above the elbow: get the underhook, or keep the arm low and in front where it cannot be reached over.

Do not frame with a straight, high arm from underneath a pin. An arm extended toward the attacker’s chest is an arm being offered. Frame with the forearm, elbow connected to your ribs.

Before the clasp closes — straighten. While a gap remains between your upper arm and their chest, extending hard along the arm’s own line takes it out of the fold. Once their hands meet, the gap is gone.

Once clasped — turn with it. Rotating your body in the direction the arm is being taken removes the differential the lock needs. It concedes nothing you still had. Then tap.

Full coverage on Mir Lock Escape, which covers both halves — the early answer is the same from either end.

Common Errors

Drilling Notes

• Overhook height. Take the overhook at the forearm, just above the elbow, and high near the armpit, and at each one have the partner try to rotate their shoulder. No finish. The drill makes visible what is otherwise only discovered when the lock fails.
• Crush, clasp, turn. Three-count drill with a passive partner, called out loud until the order is automatic. Most failures are step three arriving before step two.
• Frame-feeding rounds. Positional rounds from knee on belly where the bottom player must frame and the top player may only take the overhook — no submission. Trains the read that produces this in live rounds.
• Straight or bent. Partner frames with a straight arm or a bent one at random; attacker calls which submission is available before touching it. The pairing with the top shotgun armbar is the point.

Ability Level Guidance

Ruleset Context

A shoulder lock with an elbow component, and neither is belt-restricted or otherwise limited. Verify current ruleset versions before competing.

Also Known As

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