So, apparently, there's a really odd bug related to this weapon color. Whenever I equip either of them on the Cavity 9mm, the back of the iron sights get removed off of the weapon. I don't know how the hell this weapon color does that, or if you can do anything about it, but it applies only to that. The bug persists for every weapon color, until sold.
Sorry if you had to open the images manually. I don't know how to embed images onto the comments on this site