Dear Yoshi P here are some example of Lost Ark Blasters and Scouters:
https://www.youtube.com/watch?v=85aK6V44F9I

https://www.youtube.com/watch?v=E2xaZgE4D0Q

I hope he ssees this for inspiration either he can add new skills for the Machinist next expansion or he can create a new ranged class based on these.