The Osprey AL is a 3-stage, oval-shaped carabiner. Crafted from high strength 7075-T6 aluminum, the Osprey is strong and lightweight. The oval-shape helps center loads on the carabiner and is a good choice for aid climbing and high angle rescue.
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.