I hate to throw gasoline on a fire, but that turn line sure seems too pronounced for a brand new gun. Have you fired it or dry fired it enough to do that? How do/did the recoil shield, top strap and front of cylinder look?
I recently purchased a new 586 and the rear sight looked exactly like the OP's.
Cookie stamping plastic is easy.Like running off a batch of Frisbe's.No real buffing of the slide before the Black Paint is applied either.+1 on: yea, that's what the stainless guns usually look like.
I have an older white outline rear sight that, while not crooked, is missing part of one side and looks like a kid painted it on. So, I'd say that's the new 'normal' from S&W and has been for 10+ years. That's probably why they don't put white outline rear sights on many guns because they just aren't capable of doing a decent job on them - compared to say, Glock, who can somehow do it perfectly every time.
This sort of thing explains the preference of older guns so many of us have.
Good luck to you 686357. I sincerely hope that all that is wrong is made right.
Your experience has reaffirmed my long standing gun purchase policy. SHOP LOCAL AND SHOP FTF. I only buy used and I know this puts severe limitations on what I can buy, but my mistakes and disappointments will be on me. However, I'm fortunate to live in an area with numerous LGSs and pawn shops. If they don't have what I want right now, they will later.