No, its not possible. The mechromancer was not available at launch. If you want to use her you need the update that came out the day she was released, however i don't think its possible to download that update without updating to the current version.
If you believe in Jesus Christ and are 100% proud of it, put this in your sig. GT "bearbeau" PNS "bearbeau"
then how do people give max skill points to gaige?
By modding their save file.
tried that, we use gibbed to edit saves but its impossible to edit gaige with it because with gibbed you cant have any updates on the cache for borderlands 2 yet you need to have them to even play gaige.
Ok, after 4 hours of combined time today we have figured out how to convert xbox 360 saves to pc saves, edit, then convert them back to xbox 360 saves. I took my hard worked lv 36 axton and made a lv 36 maya and gaige both duplicate saves. I like to cheat to an extent but I want to get to lv 50 legitly and having 3 of the best classes at my disposal is perfect. Thanks for the help tho guys!