Black Diamond Oz Carabiner: So Hot Right Now

It would be inappropriate for everyone to replace their 'biners with the Oz, but in the alpine, or other situations where weight is a critical component, the Oz is a pretty hot piece of work. While there are other great lightweight 'biners on the market, the weight and quality of the Oz make it an outstanding piece of gear worthy of the Alpinist Mountain Standards medal.
Pros: Hot-forged construction makes this 'biner extremely strong and lightweight; wiregate allows snow to pass through; gate opening works well, even in high load or high stress situations.
Cons: Harder to clip than a full-size 'biner; easy to fumble with cold hands; nose can snag.