HSTL Thermal LENS - Clear $200 Mystery Box It comes with a combined

It comes with a combined chronograph and tracer function

or duty use with a weapon light

A: It is designed primarily for Golden Eagle Hi-Capa 5

Primarily designed for M4 Mid Cap Magazines

or paintball marker

HSTL Thermal LENS - Clear $200 Mystery Box It comes with a combinedWhat's Included? HK Army HSTL Goggle Thermal Lens (Clear) What you need to use it This is a replacement thermal lens for the HK Army HSTL Goggle. To install, remove the current lens from your HSTL goggle frame and snap the new thermal clear lens into place (tool free quick change system). Clean with a dedicated lens cleaner and microfiber cloth before use. Pair with your existing HSTL goggle frame for anti fog performance during airsoft or paintball