A low-poly 3D model of the Stylized Tactical Submachine Gun submachine gun doesn't contain any n-gons and has optimal topology. This model has two texture sets so the archive with textures includes two folders:
Holographic sight screen Textures (512X512): base color map, metalness map, normal map (OpenGL), roughness map, emissive map.
Stylized Tactical Submachine Gun Textures (2048X2048): base color map, metalness map, normal map (OpenGL), and roughness map.