Insight X2 Sub-Compact Weapon LightAINSMTV 700 A1 When it comes to concealed carry low light versatility, nothing beats the X2 and X2L. This is the world's first and best sub compact weapon mounted light and laser light combo. The X2 features include a slide lock interface, focusable beam, and intuitive rocker switch with Constant and Momentary modes. The X2's peak output is 40+ Lumens.