Looks more like a homemade pipe gun.
CC
Yeah, probably something like this with more camo fabric tape wrapped around the barrels:
https://www.recoilweb.com/slam-fire-shotgun-diy-building-joe-bidens-blaster-166814.html
Higher resolution photo of the weapon....definitely looks “home brew”:
https://twitter.com/IntelCrab/status/1545263545973178369