Conversion Cylinder for Lyman New Model Army .44?

Some were made by Uberti, and some were made by Armi San Paolo.
Look for the "U" mark for Uberti
"ASP" or "DGG" for Armi San Paolo

The Circled DGG is usually hidden under the loading lever.

I would contact a good single-action gunsmith if there is not drop-in I'm thinking one could be fitted to your gun. Here is a thread on guys that work on single actions. https://www.thehighroad.org/index.p...ing-and-conversion-work.870077/#post-11547733

antagony said:

Has anyone successfully installed a 45LC cylinder for the Lyman New Model Army .44? Weren't these just Uberti productions?

thanks!

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Whether it was made by ASP or Uberti, it would probably still need an Uberti conversion cylinder.
This thread seems to confirm it. --->>> https://www.thehighroad.org/index.php?threads/remington-1858-questions.842429/#post-10944946

AlaexanderA posted:
"I have a Euroarms Remington that I bought in the mid-1980's......Conversion cylinders made for the Uberti will also work in the ASP, with possibly minor adjustments....Speaking of conversion cylinders, I have 5-shot Howell cylinders for both the Uberti and the ASP."