I purchased a 12 gauge short barrel Mosberg 500 shotgun two years ago for my wife's self defense since I am away often. Due to past operations, she can't have anything against her shoulders that kick at all. I purchased a Knoxx Breachers hand grip and removed the stock. The Breachers Grip has a spring that takes up the recoil. It works beautifully. She can shoot any load bird, slug, or breacher with no problem. Her only complaint is that she can't fit the gun in her purse.
On one of Knoxx's videos, it depicts shooting the shotgun single handed like a pistol. Although I don't recommend it, I have done it with no problem or pain. I beleive I purchased the Breachers Grip for $99.00 off the net.
Our indoor gun club is two block from our home and she is there at least once a week with one of her hand guns. When I am home, we head out to the clubs outdoor range where she practices with the shotgun and larger caliber hand guns.
I always let her know when I will return home late at night for my own self defense!