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Black Diamond - Magnetron Rocklock - HMS carabiner

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  • Free delivery from £50
  • 2-year warranty
  • 30 days returns policy
  • > 250,000 happy customers
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Attributes & features
Carabiner type:
HMS carabiner
Major axis strength:
24 kN
Minor axis strength:
7 kN
Open gate strength:
7 kN
Gate opening:
21 mm
Magnetron magnet locking
87 g
slightly bent back; Key lock nose; can be operated single-handedly
Item No.:
Product description
The Black Diamond Magnetron RockLock carabiner uses a truly revolutionary gate that locks shut with magnetic tabs instead of a traditional screw gate. The advantages? Nothing to freeze shut in the winter or to clog up with sand, and you can operate the gate with one hand. Not to mention that this gate is significantly faster to open then traditional locking mechanisms. To top it all off, Black Diamond gave the RockLock carabiner a keylock nose that won't snag on gear, slings, or bolts when you tear down your anchor to head up the next pitch. Note: the locking mechanism comes in different colors (dark blue, light blue, green, or orange), so you might not get the blue that's pictured.

  • Revolutionary magnetic locking gate features two magnetized arms that repel each other when the gate is open but lock shut when they come in contact with the steel insert in the carabiner's nose
  • Gate opens by depressing the two arms with thumb and forefinger; can be operated with one hand, and design works equally well for right- and left-handers
  • Slightly curved spine maximizes gate opening
  • Magnetic gate doesn't have components that can freeze shut or clog with sand
  • Keylock nose helps prevent your rope from snagging
  • Hot-forged for maximum durability
  • Note: locking mechanism comes in different colors on the carabiner, so you might not get the blue that is pictured

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Alpinetrek expert Hannes

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Reviews overview
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Praise vs. Criticism

Dominic | Stuttgart


man denkt es gibt schon alles und...

man denkt es gibt schon alles und promt entwickelt so ein pfiffiger black diamond mitarbeiter eine revulution.


bernhard | innsbruck


gross und schwer

im trockenen schnell und gut zu bedienen, bin aber skeptisch was verwendung mit handschuhen und im schnee betrifft. insgesammt ein bisschen gross und schwer, eher etwas für einsätze wo gewicht keine rolle spielt...

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This is what other customers say:
| Absam


Immer dabei

  • Advantages
    Excellent handling

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| Gütersloh

Top-ich find´s klasse.

Im Einsatz in der Halle für Sicherungsgeräte. Leicht und schnell zu öffnen, zuverlässig und schnell verschlossen.

  • Advantages
    Excellent handling
    Quick to open

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| Haag

77% have found the reviews
by Karin helpful

Guter Automatikkarabiner

Wir haben nach einem Automatikkarabiner gesucht, der sich einfach und unkompliziert mit einer Hand öffnen lässt und dennoch sicher ist. Ich dachte, dass sich dieser unbeabsichtigt leichter öffnet als andere Automatikkarabiner - im Selbsversuch war dies aber nicht möglich.

Einsatz ist bei uns unter anderem bei der Standplatzschlinge.

  • Advantages
    Excellent handling
    Quick to open

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