Black Diamond Magnetron VaporLock Locking Carabiner

The Magnetron VaporLock is only a fraction of an ounce heavier than the screwgate model - 2oz versus 1.8oz - and otherwise nearly identical. Both models have large gates to accomodate their respective locking mechanisms, and the nose profile on the Magnetron is slightly larger to house the steel inserts for the magnets to grab onto, but you won't notice that on your rack. What you will notice is the ease of use, resistance to snagging thanks to the keylock nose, and large 20mm gate opening. If you're only rocking one locker on your rack, the Magnetron VaporLock is the way to go.