$12 IGLA 9K38 Low-poly 3D model by Antwo3d. Available on CGTrader with 11538 polys and 12531 vertices. Check it out on CGHub.
MA (Autodesk Maya, filesize: 4.31 MB), BLEND (Blender, filesize: 5.12 MB), OBJ (OBJ, filesize: 5.77 MB), FBX (Autodesk FBX, filesize: 4.58 MB), MAX (Autodesk 3ds Max, filesize: 6.43 MB), GLTF (glTF, filesize: 78.6 MB), TEXTURES (Textures, filesize: 245 MB), UNITYPACKAGE (Unity 3D, filesize: 81.6 MB)