My dual pistol grip makes my shot gun is much more effective in close quarters but not the best huntin’ iron.
Of course I ain’t going to be hunting ducks in my house.
I’m absolutely serious about this.
Short shotguns are very handy too. A rifled RemChoke in an 18" tube will pattern buckshot well at 35 yds and put slugs in a paper plate at 80+ yds. I never had any "tactical" grips on my shotgun, as noted I like them on the short AR. I bet a purpose built auto-loader would be the bomb!
I have never tried one with dual pistol grips. That just might make a difference. I did put a single one with no butt stock on my Winchester defender. It was awkward to handle and difficult to aim but that was not the worst problem.
It kicked like a mule. I then tried the pistol grip stock and that was better than either the plain stock or just the pistol grip sans stock. I have arthritis in my hands and it was much easier to handle with the assault rifle type stock setup.
It was the “Winchester model 870” which made me wonder if you were kidding.