Petzl's lightest locking carabiner.

Unlike most locking carabiners, Petzl designed its Spirit 3D Screw-Lock Carabiner for climbing-specific situations like belay stations and top-rope anchors. Made solely out of aluminum, this is Petzl's lightest carabiner, and its H-shaped cross section gives it a surprising amount of durability with a superb strength-to-weight ratio. It has a very compact size to keep anchors clean, and its size helps accommodate multiple climbers at a single belay station. Despite its compact quality, this biner has a wide contact surface for better rope glide that also reduces wear on the carabiner for excellent longevity. The screw-lock sleeve is easy to use and provides efficient clipping, and the visual indicator clearly points out whether it's locked or not. This pear-shaped carabiner also features a keylock nose for snag-free clipping every time. 

  • Aluminum with H-shaped cross section
  • Screw-lock with visual indicator
  • Keylock nose
  • Pear-shaped carabiner with wide contact surface

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Here's what others have to say...

5 5

Absolutely Great

  • Familiarity: I've used it several times

I have used a number of screw lock carabiners from Black Diamond, Mad Rock, and HB. These are by far my favorite general-purpose lightweight and miniature lockers. The red marker is a great add-on for quick identification, and the screw itself has a great action. In addition, it has a smooth bevel that doesn't catch cordelette or slings like the flat end of some other lockers. Plus, they're lighter than many other non-lockers out there.

5 5

Top notch locker

  • Familiarity: I've put it through the wringer

This is a fantastic locking carabiner to keep with you as generic locking carabiners or for locking draws for clipping anchors. I'm normally not much of a fan of screw gates (vs. auto-lockers) but the Petzl safety marker is a huge plus. Just like the original non-locking Spirit, this carabiner has awesome ergonomics, clips as smooth as butter, and has a low profile nose that fits anywhere.

Top notch locker
Pairs well with the Mega Jul

Pairs well with the Mega Jul

The Mega Jul slot for using a carabine as a lever for lowering and rappeling normally only fits the nose of the biner. But the Spirit's low profile nose lets it completely clip the levering slot for more security.