Backstory: I bought these sights from the EE here. I've had them for close to a year now.

There are a few things about these that don't quite look right to me based on Centurions pictures from their site. Centurion C4 Diopter Sights

First off is the silver round-head screws. The ones from Centurion are black, smaller, and the heads flatter.

Second is the triangular machining around the holes in the rear sight. All the machining is off to the left of the hole.

Third is the pictures from Centurion show round machining instead of the triangular machining around the holes.

Can anyone chime in on the authenticity of these? The rears are marked with the logo but I don't put a lot of stock in that.

Screws:



Hole Machining:



Logo: