Artus' Fleet of Firearms

You summon a group of six floating firearms, that float in your space for the duration. As a bonus action on your turn, you can fire one firearm. Each firearm is loaded with 2 shots, can load up to 6 and once it runs out of ammunition it disappears. Each firearm uses your spellcasting ability for attack and damage rolls, and has a range of 30/120. On a hit, a firearm deals 2d6 magic piercing damage. As an action on your turn, you can reload a firearm with 2 shots, so long as it has 1 shot left. Once your concentration ends, or you choose to drop concentration (no action required), all remaining firearms disappear.