DS Arms ZM4
The lower receiver is a DS Arms (DSA) ZM4. Since this was purchased used, I'm not sure if the upper receiver is also DSA or something else. There are no markings on the upper receiver assembly, except for the square forge mark. The fore-end is Magpul.
If DSA sounds familiar, they're known for their FAL rifles.
I haven't gotten around to shooting this yet, although I will post updated pictures if I do (now that summer time is here).
No box, no paper, no other accessories. If I find one of my spare MBUS rear sights lying around, I'll include it, but I'm not promising anything.
Try as I might, I just can't get the safety lever to turn all the way . . . ;-)