Patent ID: 7665396

Claim:
An apparatus for launching projectiles comprising: a body defining a combustion chamber and a bore; a front bolt movable between a first position and a second position, wherein at least a portion of the front bolt is disposed within the combustion chamber in the first position; a rear bolt movable between a third position and a fourth position, wherein at least a portion of the rear bolt is disposed within the combustion chamber in the fourth position; a drive mechanism adapted to urge the rear bolt to the fourth position; an igniter device adapted to ignite a combustible mixture within the combustion chamber to propel the projectile through the bore; wherein a portion of the rear bolt is configured to actuate the igniter device when the rear bolt moves to the fourth position; and wherein the igniter device includes a plunger and wherein the portion of the rear bolt axially moves the plunger when the rear bolt moves from the third position to the fourth position.