I did my usual "black powder" browse on Cabela's online and saw that they now have shoulder stocks for the Pietta 1851 Navy, 1860 Army, and 1858 NMA. First time I've seen them there. They're a bit pricey at $230 but they've been real hard to find. I ordered one for an 1858 NMA Buffalo model that I have. These are marked as "backerderable" and they'll get them in 2 or 3 weeks. Just thought I'd pass it along in case someone else has been looking.