30 can be opened as shown in fig1 fig1 shows an alternate configuration in which the length of control link 60 can be adjusted by threading screw 91 a into the blunt end of control link 60 screw 91 a is adjusted to provide the proper clearance between surfaces 62 and 92 screw 91 a must be adjusted before assembly an arrangement that is not as convenient as the configuration of fig1 other configurations can be used to adjust the length of control link 60 for example control link 60 can be configured as two parts that mate together without threads that provide an adjustment for length by using shims or spacers or the like between the two parts fig1 shows another alternate configuration in which the location of notch 26 can be adjusted screw 91 b threads into the leg end of body 20 screw 91 b is adjusted to provide the proper clearance between surfaces 62 and 92 screw 91 b is configured to facilitate adjustment by a screwdriver or socket driver or the like after the carabiner has been assembled climbers are often in precarious positions in which only one hand is available to insert a rope into a carabiner typically the other hand is occupied holding on to another climbing aid or the rock surface under such circumstances it is imperative that the carabiner be unlocked and easily opened because the inventive locking carabiner has two stable positions either locked or unlocked and control link 60 can be easily moved with one finger a climber can unlock the carabiner if it is not already unlocked open and close gate 30 as many times as need and when appropriate lock.