So let me start off with i bought like 6 of these things so far. I love em. But i found myself trying to complete my daily with them “so many kills with pistol” i understand wanting to lable this smg as such. Anyways i think it should count, and an easy way to make it count would be to reword the daily achievement to something like “sidearm kills” instead of calling it pistol kills and not letting me use these things as much as id like.
Other auto pistols do count for pistol kills dailies and event tasks.
So I assume it’s just unintentional overlook. They should fix it.