How difficult is it for an ARNG to transfer to 19th or 20th SFG?

The Army National Guard’s 19th and 20th Special Forces Groups give you the opportunity to be elite in your civilian life and your military life. Members of both units maintain the same certifications and qualifications, complete the same training, and perform the same missions as Active Duty Green Berets. All are qualified parachutists—and most are qualified free-fall (HALO) parachutists and combat divers.

Guard Special Forces live throughout the United States and train with their units one weekend (three to four days) per month, plus an additional two to four weeks of training per year. Deployments are also less frequent, generally once every two to three years for six to 15 months, allowing Guard Green Berets to live as both civilians and Special Forces team members.

To find out more about how you can join this elite force and still keep your civilian career, contact your nearest Special Forces Group.

https://www.nationalguard.com/special-forces

check out the stickies and related questions in the 19th and 20th group topics here:
https://www.professionalsoldiers.com/forums/index.php

If you have a question not covered there, create a profile, drop a post in the introductions thread, then go back to 19th or 20th and ask.
They are there to help.

If you want to be a flash qualified green beanie, same same quals as being in the Active groups. I If you want to be a member, but not an operator, check with recruiters to see if they have any openings on their B and C teams for your MOS / grade.