Petzl Am'D Review
This locking carabiner stands out for its versatility. It is relatively light but still big enough for anchors with multiple slings and tie-in points. It has the much-appreciated Petzl red marked gate to give the climber and belayer a warning if the carabiner is unlocked. If you choose the ball-lock gate, you have extra assurance that the gate won't accidentally open (but also extra annoyance of having to take an extra step to open the gate). The D-shape of this biner gives it the highest strength-to-weight ratio available. The key-lock is easy to unclip from bolts and other gear.