Italics are generic gadgets. See Operator for their unique abilities and gadgets.
There is a warning in Simplified Chinese written on the side of the magazine well, saying "警告：使用前阅读操作手册". Translated, it means "Warning: Read Operating Manual Before Use".
The T-5 SMG in reality fires in an open bolt configuration, meaning that one in the chamber would be impossible, unlike the in-game counterpart, which holds one in the chamber. This error is shared with other guns with an open-bolt configuration.