Are IMU sensors used to account for environmental variation allowed? Reveal Questions Yes, gyro or IMU sensors are allowed. ‹ A previous FAQ prohibited "scopes with laser sights that shine on a glass surface contained by the scope". However, many "red dot" scopes are powered by an LED, not a laser. Would an electronic scope be permitted if it does not include a laser? Are Ultrasonic Distance Sensors and ToF Distance Sensors allowed? Thank you! ›