A plurality of actuators allow a gun operator to control the on/off status of an illuminator attached to a weapon in the area forward of the trigger guard. The actuators are spaced to allow them to extend rearwardly on opposite sides of the trigger guard. “Up” turns the light emitter on and keeps...http://www.google.com.hk/patents/US20080040965?utm_source=gb-gplus-share專利 US20080040965 - AUXILIARY DEVICE FOR A WEAPON AND ATTACHMENT THEREOF
