US Patent 8978634 Crossbow with improved rail and arrow slot

A crossbow includes a barrel with a bowstring rail and an arrow support area on the rail. An arrow retention spring is carried by the barrel for releasably holding the arrow on the arrow support area prior to launch. The arrow support area includes a first arrow rest area adjacent to an end of the bowstring rail and a second arrow rest area beneath the arrow retention spring. An arrow on the barrel is out of contact with and spaced from the bowstring rail except in the first and second rest areas. Provision of the spaced rest areas, particularly the second rest area beneath the arrow retention spring, stabilizes an arrow on the barrel prior to launch.