Scan 2020-7-20 21.18.48.pdfScan 2020-7-20 21.18.48.pdf
Since everybody else is holding back with supplying a scan from a '93 EAA catalog, I'll give it a try. Dug this out of the files in the garage. Doesn't everybody have 27 year old gun catalogs?
It was indeed "Brian Enos' Choice".
1) Yes, frame was drilled for optic.
2) Looks like your comp probably started as stock but the holes in the side were not factory. Widely offered.
3) Don't know.
4) Search this forum on the topic of barrels. Since this is an old gun, I'm guessing you might have to rely on EAA for your barrel. A few companies used to make barrels for this like Storm Lake and even Bar-Sto but not any more.
Good luck.