Magnus' NOTE: All pens not only have the new "V4" mechanism. It is still the lever style ClickShift™ mechanism - but we've made one significant change to it. The three components to the mechanism -- that's the upper part, lower part and lever -- now sit within a "sleeve". All these internal parts are made in-house from 304 stainless steel.

Also the spring in new and improved (stronger!) ...and, in case you're wondering, yes, the spring is still designed and made 100% in-house from titanium.