Why would border guards have sub machine guns (correct me if im wrong), since submachine guns have less effective range and firepower as an assault rifle? Isn't the new SMG designed for CQB? If they were border guards wouldn't it be wise to weld Type 95 assault rifle
Note that they do not represent the majority of the border guards, who should still be wielding '81's at this point, which are, personally, more adapted at range.
The tag says "公安边防", or Public Security Border Defence - Border Guards or Border Police.