They took the idea from the stock made for the Buntline and I believe Uberti makes this version for Percussion revolvers.I thought about buying one of those shoulder stocks myself, they are neat. Just don't try to attach it to your pre 1898 Single action Colt. I have 2 Colt style shoulder stocks but have never tried either yet on my C&B revolvers.
Probably because they were neither fish nor fowl. Limited range of the revolver would be stretched somewhat by the use of the stocks but this was in a time in which very few people could have hit reliably much beyond handshake range with a pistol. Of course I don’t know this, but from the reading I’ve done it seems that people shot one handed dualist style for the most part. It takes dedicated practice to hit that way at the target butts, let alone when you’re under fire yourself. If I were a cavalryman I would probably pack a pistol, saber and carbine. Two pistols or more if I could get my hands on them. The buttstock would probably be a novelty and take valuable resources to procure. Resources better used for more useful tools.They definitely have utility, they just never caught on widely in the original Period.
I just think not many stocks were actually made originally and less were privately purchased or used by the military. Also maybe they just weren't seen as "cool" back then, kinda like Civil War era body armor that soldiers and Officers loved ones purchased for them that were quickly discarded . There's a whole chapter on this in "Myths of the Rifled Musket in the Civil War" .
I always wondered why you read few if any accounts of actual use of detachable stocks on revolvers during the Civil War or on the Frontier, given that most 1860 Armies were cut for them. Remington didn't seem to be worried about them.
Being an ex Army guy I know what it's like to have "uncool" gear that you get made fun of for so maybe shoulder stocks were one of the 1860s "why are you using that crap" gear
They seem like a great idea , I'd think they'd have been popular. I'd have probably used one.