I know what it’s not. A Deluxe Dimension it advertised.
It’s probably a heartfield sub model like prophecy I. I could not find a 5 string version anywhere on the interweb, or BookFace so may be you guys can help. I called that GC for additional pictures but they never sent it. The guy I spoke to was very sure that it’s a deluxe dimension, hmmm!
It has that same a super narrow bridge pickup but it’s mounted differently.
From TalkBass:
Next is an '89 Heartfield DR-5. Made in the same factory as the Fender above to compete with Ibanez in the 80’s (note the identical tuners). This bass features an alder body, maple neck and rosewood fingerboard. Great condition, but missing a screw on the g string bridge saddle. Still sets up perfectly, I never missed it. Weight is 9 Lbs. $500.00 shipped in an inexpensive gig bag.
It’s one of a few non fender fender. Heartfield (some) is actually fender only neck through model. It’s very short lived line on Fender. If this is a 4 string I’d have determined it to be the prophecy.