I have a bunch of these Turkish shotguns - Tristar, Moss, Weatherby. I think I had 3 different SA-20 turkey models. My last one came with the pic rail, and also had the beard buster sights. Everything was good, except the gun sling hook on the stock was laying in the box.. not screwed into the stock. Assuming you got the SA-20 Turkey model - I'm almost positive you shouldn't have received a choke wrench. Since it comes with only 1 extended turkey choke. It's hit or miss with these Turkish guns, but all of them I have over the years have functioned well. However, they are all used as low-volume turkey guns... not dove hunting or anything like that with them..
And yes, the metal finish is almost like flat black spray paint. Definalty not durable. No big deal for me since I get most of my guns hydro-dipped immediately anyway..