Conversion kit with a rail system for a paintball marker

A convertible projectile launching device having an outer configuration, comprising:

• a projectile launching device, the projectile launching device having a barrel, the projectile launching device having a projectile receiver that is connected to the barrel and that is capable of being connected to a projectile hopper;
• wherein the projectile launching device has an outer surface;
• the outer surface having at least one mating surface thereon;
• at least one shell which is capable of being secured about the projectile launching device;
• each shell further comprising an inner surface, and at least one first mating surface on the inner surface;
• each mating surface being capable of being held in tension against a corresponding second mating surface on an outer surface of a projectile launching device to increase stability of the at least one shell when mounted on a projectile launching device;
• the at least one shell being configured and arranged to define a pass-through aperture to permit the projectile receiver of the projectile launching device to extend outwardly beyond the at least one shell while the at least one shell is mounted on the projectile launching device, an entry port of the projectile receiver being outside the at least one shell to enable engagement with a projectile hopper for the supply of projectiles to the projectile launching device while the at least one shell is mounted on the projectile launching device;
• whereby the at least one shell changes the outer configuration of a projectile launching device on which it is secured;
• whereby the operation of the at least one shell is configured so that it does not affect the operation of the projectile launching device;
• wherein the at least one shell is configured so that it does not interfere with the barrel of the projectile launching device while the at least one shell enshrouds the projectile launching device;
• and
• wherein the barrel is removable from the projectile launching device without removing the at least one shell from the projectile launching device.

A conversion kit for a projectile launching device having an outer configuration, the projectile launching device having a barrel, the projectile launching device having a projectile receiver that is connected to the barrel and that is capable of being connected to a projectile hopper, the conversion kit comprising:

• at least one shell which is capable of being secured on a projectile launching device;
• each shell further comprising an inner surface, and at least one first mating surface on the inner surface;
• each mating surface being capable of being held in tension against a corresponding second mating surface on an outer surface of a projectile launching device to increase stability of the at least one shell when mounted on a projectile launching device;
• an aperture defined in the at least one shell, and a removable eye cover plate received in the respective aperture, the respective removable eye cover plate and the respective aperture allowing access to a projectile detector on the projectile launching device;
• the at least one shell being configured and arranged to define a pass-through aperture to permit the projectile receiver of the projectile launching device to extend outwardly beyond the at least one shell while the at least one shell is mounted on the projectile launching device, an entry port of the projectile receiver being outside the at least one shell to enable engagement with a projectile hopper for the supply of projectiles to the projectile launching device while the at least one shell is mounted on the projectile launching device;
• whereby the at least one shell changes the outer configuration of a projectile launching device onto which it is secured;
• and
• whereby the operation of the at least one shell is configured so that it does not affect the operation of the projectile launching device.