Does anyone know what the photo etched parts on the left is used for? There seems to be three rings of PE, pluss two tiny parts that looks like maybe a bolt attached to each small elongated metal plate.
Btw, the box I got, looked nearly identical to the image, only change was that the milled part seen in the image, a ring to be fitted closer to the "root" of the barrel, was milled together with the barrel and wasn't a separate part.