I can’t seem to find this exact piece. I was wondering if you could help me find it?
Looks exactly like the microphone minifig utensil:
However according to bricklink, it does not exist in blue. Then again, neither does a technic half pin come in lime, so this is likely a render than an actual build
Update: There was a question about the blaster with clip in the comments, that blaster does exist: https://www.bricklink.com/v2/catalog/catalogitem.page?P=15445
But again it does not come in the color depicted, just black and dark bluish gray