I got the Hogue EX01 4″ variety with G10 scales appr 3 years ago. It was in a bad condition. Action sucked, it had bladeplay and very dirty.
So i gave it some maintenance, tweaked it and afterwards it was like new. It is an awesome user with a fluid action with the button lock. It is in great condition and has a lot of life left. With proper care/maintenance it will last a lifespan.
This is the 4″ variety with 4″ blade. Carried and used but in excellent condition.
Asking €125,- (MSRP > 225,-).
See pic and YT video.
Hogue EX01 
Hogue EX01 4″