If it has a slot in the sides for a chin strap, there is a bracket which snaps into that and holds the Streamlight 4AA. Since this light is rated IS for explosive atmospheres, you might want to consider that for SAR work where a hardhat is required. We use it in a chemical plant which is classified as Class 1 Div 1&2 since it is one of a few lights rated for that. Just a suggestion.