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Mad Rock Hulk HMS Twist


The Hulk HMS is ideally suited for use with canyoning descenders, with a large radius shape providing even friction and smooth rope movement.

The twist-lock gate is secure and extremely easy to use, while the hot-forged construction makes it lighter than most similarly-sized carabiners while delivering one of the highest breaking load capacities.

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The Mad Rock Hulk HMS Twist is ideally suited for use with canyoning descenders where the rope runs directly across the surface of the carabiner.

The twist-lock mechanism ensures the carabiner remains securely closed when in use, yet it remains easy to open when needed, even while wearing gloves. The carabiner can be operated with one hand by simply twisting the gate and pushing it open. Once released it snaps firmly shut.

Despite being one of the most affordable HMS carabiner on the market, its hot-forged construction delivers one of the highest breaking load capacities in the world.

A smooth and large radius ensures high performance while the keylock nose allows for quick, snag-free one-handed operation.

Note: The Mad Rock Hulk HMS fits the following descenders: Critr, Sqwurel, Element, Pivot, Hoodoo, ATS, Hannibal, No.Mad, Oka, and MiniEight.


  • twistlock gate is secure, yet easy to operate
  • lighter weight yet stronger than many similarly sized carabiners
  • round profile provides even friction and longer life
  • key-lock nose allows quick, snag-free operation

Product information:

  • Weight: 79¬†grams
  • Material: anodised aluminium
  • Dimensions: 115 mm long, 74 mm wide
  • Gate opening: 25 mm
  • Min. breaking load longitudinal axis: 30kN
  • Min. breaking load minor axis: 10kN
  • Min. breaking load with open gate: 8kN
  • Certification: CE EN 12275 type K, B, H
  • Made in: Taiwan