Kind of. Activating a circular saw to turn it on, then activating it again opens up some options, one of which is a saw barrel option, turning any compatible weapon into a kinda sawn off version. Smaller volume, I think less recoil (not sure about that at all), and higher dispersion.
So, it’s not just sawn-off shotguns. You can do it on rifles now as well. This also prevents adding the extended barrel gun mod on the modified gun, by the way, since you cut off said part.
Also, I think this can be done with a hacksaw as well.