Can I transfer from the Army NG back to the Marine Corps?

I sir I haven’t I wanted to kind of get a straight answer before I speak to a recruiter and get the I’ll tell you what you want to hear

SGT Christopher Watson - the path back in is through a recruiter, especially if you need a waiver. Unless they are a current or recent recruiter, no one on here can tell you. What the recruiter wants is a recruit to ship. Sounds like you want that too. If it can't be done, he'll tell you so he doesn't waste time on it. I'm assuming RE Code is good and your last discharge was honorable. Don't know what he'd tell you that would be what you want to hear. He either can or can't put you back in boots. You know what you are asking for and not some kid still dithering between level 12 Druid sniper seal ninja and MOS 4212. This may be a situation where the recruiter can work with you on a DD368 Conditional Release from the ARNG. It may not. The recruiter is the point of entry. If you don't like what you get back, don't take it.

LTC Jason Mackay thank you sir very much appreciate it

Do I need to see a prior service recruiter?? Also thank you for the info

I don't believe so. I think that any recruiter will be geared up to handle prior service. When I went from the National Guard to regular army I just walked into the local recruiter and I was in uniform within 6 weeks.
That being said -- this WAS in 1982.