DMM Revolver Locking Carabiner

Purchased these to add to a crevasse rescue kit, but unfortunately you can't get 8mm rope to consistently track on the roller. The odd shape of the top of the caribiner and narrow opening at the bottom mean it's not very multipurprose at all either.

Ive always been an atc guy, and the rope always had some serious friction when lowering. This twist on the classic carabiner is an awesome addition. My partners daughter has recently started climbing with us and she weighs 50bs soaking wet, so when lowering her I was finding myself forcing the rope through my atc. With this as my belay biner I have much more control while lowering her. But this one carabiner is as much as a cam, so overall I do like it alot but it depends on where your prioritys lie.

The DMM Revolver Locksafe Carabiner is a gem of workmanship and ingenuity. The Revolver is capable of various tasks including line haul pulley and friction management for ease of rope movement. Did Not put through any practical applications as of yet but, set it up to try it on a light line haul load. The Revolver keeps the rope moving smoothly with no friction wear. Plenty of strength for most applications and easily integrated with climbing harness, anchor point and friction management during descent. A supplemental pulley in a carabiner package.

I carry 2 of the screw lock revolvers in my PFD pocket. Along with a couple of 5mm prusiks and my throw rope I have a very basic wrap kit on my person while on the river.

This is very much a niche product. You can't really belay with it or use it as a dedicated pulley. It fits somewhere in the middle, acting as a sliding biner along you system. I have found two places where it really excels: on a chest harness and on a traveling anchor. Putting this on a climber's chest harness really helps to reduce drag when rappelling. I also like using it on traveling anchors at the top of multi-route walls because I don't have to stop every few steps to pull on it and it will catch me if I fall. Great product, just don't expect it to replace your existing biners or pulleys.

When used for tether Zip Line / Tension Diagonals across swiftwater missions, the built in pulley reduces friction allowing faster line times, therefor increasing safety of rescuers by reducing the amount of time in debris filled. moving water. Model with larger Gate opening would be nice

I bought a couple of locking revolvers for a trip to the gunks where there are a lot of traversing routes and overhangs. These worked out perfectly. Strung together three pitches and literally no rope drag after 200 ft of couple 30 foot traverses, roofs, etc. Gray Dick said use double ropes. This was a less expensive and lighter way to to deal with rope drag. I bought mine on sale for $25. I really like them but not for $50. I think it will help next time I do cat in the hat at red rocks when you run the traverse and the last pitch together.

I use these for my toprope setup, and they are fantastic. They lock super smoothly, and belaying on them is a dream. They look pretty cool too.

This carabiner does not work with the tibloc for a rope grab as well as this pulley is not as efficient as some other pullies you can get for around the same price range, for instance the rock exotica pulley. Overall, the idea was good but the product is overpriced and inefficient.

If you have ever tried to pull a large person out of a crevasse, you may have encountered some serious resistance, this pulley applied at the right spot could save you lots of effort. The reduced friction is key and I love this biner. Essential piece of equipment in a crevasse rescue kit.

I use this as a haul pulley in a Z-Rig for light & fast mountain climbing. When it's just me and a bud, they're fast & quick. Funky shape makes kind of useless as a replacement in all situations.