AN/PEQ-15
US Marine Corps Training Command
<a rel="nofollow" class="external text" href="https://www.trngcmd.marines.mil/Portals/207/Docs/TBS/B2E2677%20Night%20Optics%20and%20Observation%20Theory.pdf?ver=2015-04-30-111228-113">NIGHT OPTICS AND OBSERVATION THEORY B2E2677 STUDENT HANDOUT</a>