Do these tables have out feed extensions that fit into the track system?

No, Festool USA does not offer a purpose-made outfeed solution for the MFT/3 table. However, many other components from the Festool system are the same height as the MFT/3 and could be used to support materials. Of course, you could use a second MFT/3 BASIC (no rail or hardware), the CMS router tables are the same height, and some customers use the Kapex Miter Saw extensions which can be attached to the MFT/3 as well. Link to the Kapex extensions below.https://www.festoolproducts.com/catalogsearch/result/?q=kapex+ka+ug+extension