PBR Turret Gun 06 Grey Low-poly 3D model is available on CGTrader for $6. Original author: DaikLord3D. Specs: 816 polys, 865 verts.
MA (Autodesk Maya, filesize: 372 MB), OBJ (OBJ, filesize: 372 MB), FBX (Autodesk FBX, filesize: 372 MB), MAX (Autodesk 3ds Max, filesize: 372 MB), GLTF (glTF, filesize: 372 MB), TEXTURES (Textures, filesize: 372 MB), PNG (PNG, filesize: 372 MB), UNITYPACKAGE (Unity 3D, filesize: 372 MB), UASSET (UnrealEngine, filesize: 372 MB), USDZ (USDZ, filesize: 372 MB), JPG (JPG, filesize: 372 MB)