Trango SuperFly Carabiner SuperFly is the lightest full-size carabiner in the world Weighing in at just under 30 gm for the Wire Gate and 37 gm for the Bent and Straight Gate versions, a quickdraw using these and one of our UltraTape slings is the same weight as an oval carabiner! We?ve used the latest in hot forging technology to design a super-strong carabiner that retains the rope friendly bearing surfaces and the familiar handling characteristics of what you?re used to 37g