I guess the next logical step would be a paintball gun with a barrel caliber machined downto the precise diameter of a Gold Tip 55/75 arrow. (instead of 68 caliber). Pop out the nock and slide a shaft down the tube. Point and fire.

Just unscrew the .68 cal barrel on the Tippmann and pop in the arrow barrel...

Hamster on Wheel. Lights flickering...