I was just thumbing through the "Galls" Catalog - 2008 - "The Authority in Public Safety Equipment and Apparel". NOT. While the Generation 2+ and 3 tube based night vision equipment probably work "well", the housings are not compatible with most, if not all of, the U.S. Mil-Spec accessory equipment available in the market. If you want lower priced equipment for camping. Buy it. If you want high-performance night vision equipment for critical and demanding applications, buy ITT or Northrup-Grumman U.S. manufactured night vision equipment. That's all.