Problem with Dm-101

[Puttsterman]

Hello, Im trying to figure out why my Derringer will not fire the bottom round, can only get it to fire top. I also have been trying to find the whole firing pin assembly but everywhere i look it is out of stock. any ideas?

 

[Scorch]

High Standard derringers have a special cam inside that makes the hammer alternate between top and bottom barrel. It may be worn, stuck, or not turning because the pawl is not working. Most gunsmiths who are under 60 have never seen one and have no idea how to work on them, so be careful.