not a great picture, but its the Race Air Leather w/o lockout.
i'll try and take better pics later if anyone wants them.
ps- I paid just over 80 for mine... worth every cent... its great looking and great feeling. Its a universal knob though, it doesn't just thread on, there are screws for it... get some loctite for the screws b/c mine tended to work themselves loose and i'd have to retighten it once every couple of weeks or so. No big deal at all though.