The Virage tube length is the same as the Sierra twist .... 2.21"
The bushings are the same 20A bushings (as for the Sierra twist, Mesa, Wall Street II, Gatsby, etc.). Maybe you already have them.
The table that Don referenced above is indispensible ... I use it nearly every day.
You'll find the Virage twist ballpoint information on the last page in the Berea file. You probably don't want to do the Virage rollerball, which is a two-tube pen, and is not nearly as attractive as the single-tube Virage twist ballpoint, IMHO !
