C3 A

The rockO 3-stage Auto-Lock is a blend of the traditional oval and the rockD giving it more strength than the standard oval. This design is great for users that need extra room at the bottom of the carabiner while keeping their gear aligned.

Autolocking or selflocking carabiners have a spring-loaded barrel that closes over the gate when released. This type of locking carabiner offers a little more security in the system over screwgate carabiners, but all carabiners should be second checked.