Mammut Smart HMS 2.0 Carabiner
Best safety oriented carabiner for climbers prioritizing cross loading prevention.
This belay-specific carabiner solves the age-old annoyance of cross-loading by locking itself into the perfect orientation every time. It’s a simple, foolproof mechanical fix that prioritizes safety without adding bulk, making it an essential upgrade for anyone tired of constantly checking their gear mid-climb.
$19.99
at
CampSaver
More Smart options
Who it's for
- Safety-conscious climbers prioritizing correct orientation during belays
- Alpine climbers needing reliable gear performance in cold conditions
- Frequent gym and crag climbers seeking to minimize rope drag
Who should skip it
- Climbers using a wide variety of non-Mammut belay tools
- Ounces-counting weight purists focused on fast-and-light mountain ascents
- Traditionalists who prefer the simplicity of classic locking designs
Performance breakdown
Belay security
The innovative safety gate effectively eliminates dangerous cross-loading during belay sessions.
Handling ergonomics
Intuitive design makes clipping and rope management feel fluid and natural.
Snag resistance
Keylock nose geometry ensures clean, hassle-free clipping without catching on gear.
Structural integrity
High breaking load ratings provide significant peace of mind under tension.
Weight efficiency
Solid construction adds durability, though it carries slightly more mass than ultralights.
Orientation stability
Prevents rotation in the loop to keep your belay system aligned.
Key Specs
Height
119 mm
Width
77 mm
Weight
150 grams
Material
Aluminum
Major axis strength
28 kN
Minor axis strength
11 kN
Open gate strength
6 kN
Shape
Pear Shape (HMS)
Locking mechanism
Screwgate
Keylock nose
Yes
Know before you buy
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Ask Metto anything about the Mammut Smart HMS 2.0 Carabiner before you decide.
