Automatic Weapons are a category of . They are essentially modern firearms and field artillery in that they use a chemical reaction to propel an unguided projectile to the target. Full Auto weapons are capable of single shots or burst fire at the flip of a switch. Many modern models use non-reloadable bulletclips that are self-contained with projectiles, propellant and a small battery to interface with the pistol's ammo reader. Other models use reloadable magazines that use cased ammunition.