- 10%

One of the lightest locking carabiners in the world. The HMS Nitro Lock, featuring an updated body design and thinner gate, has been optimized to maximize both safety and performance. The design offers an optimal area for working with the Italian hitch knot (HMS) and increases the strength in open gate and minor axis positions. I-Beam construction delivers a high strength-to-weight ratio while still maintaining a rope friendly radius. The keylock nose on the HMS Nitro Lock has also been profiled to fit flawlessly into the tension release point on the Piu 2 belay device for releasing a second after they’ve weighted the rope.

  • Our lightest and most compact HMS carabiner
  • Updated body shape increases both open gate and minor axis strengths
  • Keylock nose reduces snagging


CAMP (Concezione Articoli Montagna Premana) is situated in the small mountain village of Premana, Italy. This is a place where history, experience, imagination, and verticality have coalesced into a veritable crucible of mountain culture and product engineering. A century and a quarter of innovation that begins with the origins of modern mountaineering and ends with CAMP’s global reputation for producing the lightest piece of gear in nearly every category.

Ref. Product name Weight Material
g oz kN kN kN mm mm mm EN 12275 121
1199 HMS NITRO LOCK 55 1.9 21 9 7 21 104 74 Aluminum alloy H


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