Abstract: A multi-shot blow gun assembly includes a rotatable dart magazine mounted around a fixed shaft. A proximal end cap is secured to the shaft adjacent the proximal end, and defines a projectile loading aperture and an air input aperture. A distal end cap is secured to the shaft adjacent the distal end, and defines a projectile exit aperture. The projectile magazine is rotably mounted around the shaft between the proximal and distal caps, and defines a number of chambers each configured to receive one of the plurality of projectiles. Selectively revolving the magazine about the shaft aligns each of the number of chambers with the loading aperture to define a corresponding projectile loading path and aligns each of the number of chambers with the input and exit apertures to define a corresponding projectile launching path. A spring-loaded indexer is coupled between an end face of the magazine and one of the proximal and distal caps.