The DIALIGHT 204-0137-203 is a clear convex PMI cap, offering a robust and reliable solution for protecting sensitive optical components. Constructed with polycarbonate and finished with black nickel, this cap provides excellent durability and corrosion resistance. Its convex shape and watertight hardware ensure optimal performance in demanding environments. Compliant with MIL-L-3661B, it's ideal for military and industrial applications requiring high-quality lens protection.