[joab]

I have had many Taurus revolvers all with zero problems
I have had a few Ruger revolvers and all but one have had disabling problems
But none of them or any of the other revolvers mentioned will do what you are asking
Disappear completely in a pocket

The NAAs are not mere toys or novelties, they are however deep cover and or up close and personal last ditch guns

I have one of those with the flip out handle and honestly would not waste my money on the grip, just too slow to get into operation for the application

There are many many better options for the gun
Neck holsters, pocket holsters and even belt buckles