James W.wrote a review of Black Diamond Nitron Screwgate Carabiner on August 7, 2016
Familiarity: I've put it through the wringer
I never leave the deck without 'em. From personal anchor to glacier travel, these are light, versatile, quick and easy to lock and unlock. I use a larger-gate mini-pear, attache' or maybe one day a magnetron for belay duty, but these guys get all the rest of the action.