DMM Ultra O Durolock

(1 customer review)


The DMM Ultra O is a classic climbing carabiner trusted by professionals and amateurs around the world. Now the Ultra O has been coupled with DMM’s patented Durolock design to provide a safe and easy quadruple-action auto-locking ability to minimize the chances of accidental gate opening and maximize security. Sophisticated yet functional, the gate is operable with one hand. The oval shape of the Ultra O facilitates multiple connections and the round basket allows any of the connections to self-center when weighted.

Out of stock


Breaking Strength:

  • 25 kN Major Axis
  • 12 kN Minor Axis
  • 7 kN Gate Open

Gate Opening: 0.79 in
Weight: 2.61 oz

1 review for DMM Ultra O Durolock

  1. Zachary Richards

    Easy enough to master the motion “one-handed,” and the added security of the gate leaves me worrying less about my attatchment and more about just climbing.

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