question about "3D printed Good Samaritan pistol"

[sonicfreak04]

I think it's awesome that we now can buy our own 3d printed replicas of the good samaritan from Hellboy, I have a question regarding going further with the 3d model. I have no experience making 3d models would someone who is experienced with model making modify a base model of the pistol to make the barrel actually revolve?

 

[McFlyte]

I think you'll find there's plenty of choices already online. Do you mean something like this?