Aerodynamic projectile and means for propelling same

A weapon for firing a small planar projectile having propellant carried on a rearward part of the projectile as an exposed mass, comprising a gun body, a firing chamber in said gun body, said firing chamber configured to receive the projectile, a lid assembly which is movable relative to said gun body, said lid assembly including a projectile stop that becomes part of said firing chamber when said lid is secured to said gun body whereby when a projectile is loaded into said firing chamber, it abuts against said stop and is held ready for firing, barrel means carried on said gun body with the internally disposed end of said barrel means being in communication with said firing chamber thereby to receive the projectile when the same is fired from such chamber, said barrel means having a form that is complementary to the external periphery of the projectile so as to guide and aim the same as it traverses therethrough, and means carried in said gun body for igniting the propellant whereby upon such ignition, the propellant explodes causing the projectile to exit said firing chamber and traverse said barrel means at high velocity.