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Compare Best Carabiners & Fasteners head to head
Pick any two picks from this list and see specs, current price, pros, cons and reader ratings side by side.
#5 on this list
Plume K3N Carabiner
Grivel
Grivel's forged ultralight D — the rack carabiner for people who count grams but refuse to drop below rated hardware. Stiff, clean-clipping, and light enough that a full rack of them changes how a pack feels at the end of a long day.
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#6 on this list
FS Mini II Carabiner
Metolius
The smallest carabiner in the list that is still full-strength. Metolius shrank the frame without dropping the rating, which makes the FS Mini II ideal for racking small gear, aid pieces, and anything you want on the harness without bulk.
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Specs side by side
| Spec | Plume K3N Carabiner | FS Mini II Carabiner |
|---|---|---|
| Maker | Grivel | — |
| Model | Plume K3N Carabiner | — |
| Type | Non-locking D-shaped | — |
| Material | Hot-forged aluminum | Aluminum alloy |
| Best For | Ultralight climbing racks | — |
| Gate Type | Wiregate | Wire |
| Strength | — | 23 kN major axis |
| Weight | — | 23g |
| Certifications | — | CE / UIAA |
| Gate Opening | — | 21mm |
What our reviewers liked and didn't
Plume K3N Carabiner
- Exceptional strength-to-weight ratio for an ultralight rack
- Smooth, snag-free wiregate operation with clean nose design
- D-shape efficiently loads strength along the spine
- Durable hot-forged aluminum construction withstands abuse
- Resists freezing better than solid gates in cold conditions
- Higher price point than many heavier alternatives
- Smaller profile can be less comfortable for large hands
- Not ideal for belaying or rappelling due to narrow profile
FS Mini II Carabiner
- Extremely lightweight for a full-strength carabiner
- Compact size minimizes bulk on harness or rack
- Wire gate reduces weight and resists freezing
- Reliable for racking small gear and accessories
- Too small for primary rope or belay connections
- Gate opening is restrictive for larger items
- Easy to misplace due to its tiny size
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