You can purchase and download this model here:
https://www.cgtrader.com/3d-models/military/gun/rigged-low-poly-revolver-with-pbr-materials-and-multiple-skins
https://www.turbosquid.com/3d-models/revolver-skin-pbr-materials-model-1496563 https://blendermarket.com/products/rigged-revolver-with-pbr-materials-includes-skins https://www.pond5.com/3d-models/item/122959353-rigged-low-poly-revolver-pbr-materials-includes-skins