When you join the College of Arrows at 3rd level, you gain proficiency with shortbows and light crossbows. If you're proficient with a simple or martial ranged weapon, you can use it as a spellcasting focus for your bard spells.
The College of Arrows is an alternative school of study to the College of Swords, where students perform with incredible feats of martial accuracy. Bards in this college are called many names, such as deadshots, sharpshooters, or trickshots. These bards make use of special arrows to inspire awe, create wonder, and even deliver their spells.
Their talent with weapons inspires many deadshots to lead double lives. Some find themselves traveling with performing troupes as a cover for assassination or blackmail. Others may serve as legendary mercenaries whose very presence can change the tides of war.