I have used a Buck for many years, and I think they make decent knives, but this model looks like spawn of the marketing department.
All you need for clipping to a carabiner is a model with a lanyard hole, through which you run cordage of your choice. The looped cordage can be tied in a loop in various ways, any of which will clip nicely into a biner. The resulting rig is lighter, more versatile, and cheaper than the Approach.