I have a Winchester M1 carbine I am trying to bring into WWII configuration. I recently bought a Winchester flip sight from a private party on an online auction. After having been burned with some other recent Winchester carbine parts purchases which turned out to be fakes, I would really like to get comfortable with the authenticity of my newly purchased flip sight while I may still have an opportunity to return it. Can you please offer me your opinions? If you are not willing to post details here due to it giving counterfeiters guidance on how to improve their wares, I'd certainly appreciate offline communication, too.
Anyhow, I've put extensive close-up photos here:
I can take more if need be.
Thanks in advance,