AN/PEQ-15 and AN/PEQ-16 side by side
US Marine Corps
<a rel="nofollow" class="external text" href="https://www.trngcmd.marines.mil/Portals/207/Docs/FMTBE/Student%20Materials/MCECST/E_Limited_Visibility_Devices_PP.pdf?ver=ew6_pgf2PC2M_t_HouFtyw%3D%3D">FMTBE Limited Visibility Devices</a>