In order to keep a firearm safe to use, it must be kept clean and covered with a light film of good quality oil to prevent corrosion.
The barrel bore should be cleaned and left free of debris.
For normal cleaning, rub the firearm with a lightly oiled cloth. In the same way, proceed with the bore of the barrel. Excess oil should be removed. Dust should be removed from all crevices with a small clean brush.
Please note that a firearm with laser should not be cleaned in a tray or Ultrasonic Cleaner that submerges the firearm as this can damage the laser system.