We're moving out some of our grown kids' LEGO sets that have been in storage for a long time.
We came across a bag with all these parts in it that look to be a LEGO space ship or bomber (I say this as the canopy is more rounded leading me to guess it to be a bomber of some type. I think a fighter might have a more angled rake on the windscreen.)
I have provided some photos too. I have looked through the entire database at eBay and could not find one like it. I don't think this is custom made. Although my boys can't remember what it is either, so I decided to try the Stack Exchange