Auto Weapons are still used throughout the Imperium of Man and are similar in operation to twentieth and twenty-first century fully-automatic ballistic firearms. They use solid ammunition rather than the easily rechargeable power packs of the more common Imperial laser weapons, meaning Auto Weapons are more likely to run out of ammunition in a protracted battle. The strong point of Auto Weapons is that they use relatively basic technology, are inexpensive and are capable of being produced in large numbers even on low-technology worlds.