INSIGHT X2 SUB Compact 40+ Lumens Light And Laser Sight - $89.00 | PicClick
LED Upgrade Module for EOTech Insight X2, X2L, Springfield Armory XML Flashlight | eBay
An Insight Into Tactical Flashlights, Laser Sights and Aiming Modules: The High Speed Products of Insight Tech Gear – Page 2 – Small Arms Defense Journal