SOLD/EXPIRED FS Ken Farrell Rem 700 SA 20 MOA One Piece Steel Base

SPF: I have a nice used Ken Farrell 0 MOA steel base for a Remington short action. I will also provide the original screws in good condition. $65 shipped in USA only.
Thanks for looking.

Is this a 0 moa or 20 moa? Ad is confusing.