DMM Captive Eye Locksafe Carabiner

The DMM Captive Eye Locksafe carabiner has a captive bar that holds a spliced eye, sling, or device in one end. With its Locksafe three-stage auto-locking gate, it is built for connections that need to stay put and stay closed.

What the captive bar does

A spliced eye or sling in an ordinary carabiner can rotate and end up loading the carabiner across its minor axis, near the gate. The captive bar on this DMM traps the eye in the bottom of the carabiner so it stays aligned with the spine.

That makes it a clean choice for the end of a climbing line or a lanyard, where you want the connection to behave the same every time you clip in. The Locksafe gate needs a twist and a push to open, which helps prevent it being opened by bark or a branch rubbing past.

Inspection and retirement

Before each climb, open the gate and let it snap shut. It should close fully and lock on its own without sticking. Look for cracks, sharp edges, grooves worn by rope, and deformation at the nose or hinge. Sap and grit are the usual cause of a lazy gate, so rinse and dry the carabiner and keep the gate mechanism clean.

Retire any carabiner that has been dropped from height onto a hard surface, shock loaded, or shows wear you cannot explain. Read the markings on the spine and confirm they meet what your system needs. Life-support gear must meet the applicable standard (ANSI Z133 and the manufacturer's instructions), be inspected before every climb, and be used only by trained climbers. See more auto-locking carabiners.