I did 6 years active then went reserves. Since then I have been recalled to active duty 3 total years at different times. I like it because I can do anything a year or two then I just want a change. Reserves are good like that, I can do anything one weekend a month or two weeks a year or for a year here and there but then I like to have my civilian freedom.
I would look at the Coast Guard reserves, tons of prior DOD service do that and all the same benefits and retirement. They have a ME rating and you could join a PSU (port security unit) if you want to deploy with DOD occasionally, shoot guns, etc.
I'm also a federal civilian employee for the same service I did active duty initially with so the reserves go hand-in-hand with that, I can buy any past and potential active duty years into my civilian retirement and get the matching TSP funds credited even if I get recalled. It's a double dip I buy in to, right now I have 18 years of total military service and 14 years of federal civilian service towards two separate pensions and two separate TSP accounts that are all intertwined.