Here is the high poly version of my gatling gun module design which I have sculpted in 3d-Coat. The 3d-Coat original file has over 35 million polygons. For fbx, blend and obj I have reduced the poly count to 8 million and 5 million, still looks like the 35 million version but the lower poly count makes it easier to work with.
Here you can find the game ready version with pbr textures: https://www.cgtrader.com/3d-models/weapon-military/gun/gatling-gun-module
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