I think the strategy for using that gun would be to simply hand it to your attacker. He might miss you, but he would certainly destroy himself with the recoil.
Ever try an AMT Hardballer?
You laugh.
Google “Maadi-Griffin Pistol”.
And while you’re at it, look up “Mossberg 590 AOW” (a 12-gauge pistol), “Mosin-Nagant pistol” (there’s a few cut down to that size), “Stinger pen gun”, “Any Other Weapon examples”, and “Swiss mini-gun”. They’re all real.
I thought this was a joke but found it’s the Taurus Chief Justice. It also is capable of 3 1/2 12 gauge magnum shells. Pretty awesome firearm. I wouldn’t want to shoot one.