Day Periscopes & Vision Blocks

periscopeSIO has the experience and expertise to manufacture ballistic protected products to your specifications. We produce Vision Blocks for a variety of armored vehicles to any dimensions or size. Laser filter can be incorporated if required, as well as heated front windows.

SIO’s periscopes, and vision blocks are mounted on a wide variety of weapon systems and armored vehicle platforms.


Day Periscopes are installed on various armored vehicles and are used by the crew to observe external areas, while being protected from the battlefield environment. The periscopes are constructed emphasizing durability, reliability and exchangeability in their function or performance.
Our periscopes meet and/or exceed all performance and environmental requirements of MIL-P-46329(CR).
Our vision blocks are manufactured according to MIL-DTL-11352H(AT):

  • Type I: Steel cased
  • Type II: Plastic cased