UPDATE:
-Added speed loaders and clips for ammo.
Tad big pack of double action revolver parts, including different size barrels, calibers, cylinders, grips and rails.
I added few examples of how you c an mix those parts: 9mm 2inch short, 22lr with stock and 18inch barrel, caged 10mm and classic sport 44mag. But still, mostly you would need to pick parts you like and save it as separate gun. To make it easier I included Blender files with all parts as separate mesh and rigged version where you can just remove parts not needed. Of course fbx/dae and obj files are also there.
Due to ammount of parts there is lots of materials, 18 to be exact. All in 4k PBR, classic chrome and black colors are included.
Verts: (all parts) 91K / average mix should be around 9-10K
Tris:(all parts) 183K / average mix should be around 18-21K
Made in Blender.
PS. Model is not made to be 3D print, Do not ask for scale/conversion. Its low poly model for games/animations.