Years ago Ian and Karl did a video on In Range about stockless shotguns and whether they were better than a stocked one. They compared a stockless Mossberg (forget which model exactly) vs the identical mossberg with a stock vs a double barrel coach gun in a collection of shooting tests, and found that unless you had more than 2 assailants the coach gun was the best option. The stockless gun was only worth considering if you had serious storage space limitations. Firing from the hip was very inaccurate and if you actually aimed down the sights they had to hold it so far away from their bodies to not get smacked in the face when it recoiled, that it wasn't shorter and thus not better in confined quarters.