I don't think so, NARGC is off of Belvedere Rd, which is a side street turning off of 64, Jefferson Blvd. That's nowhere near 77 or Thurmont IIRCI bet the one you are thinking of is North American Rod and gun club- east of Hagerstown
There is an indoor range in the works for Frederick, hopefully open sometime next year
more info on this?
I'm sure it will be forthcoming, i know the owner is in the process of getting the building up to speed. Probably next year sometime.
If you'd like to get signed in as a guest at the Isaac Walton in Hagerstown, just opposite the Hagerstown Speedway off of Rt 40, let me know.