Grimoire
A firearm enchanted to shoot blasts of magic. Spinning the barrel can cause it to have a different effect.
Pistol
Ash wood handle, steel components, carved with ancient runes to contain magic.
~3lbs
Spinning the barrel will change the effects of the bursts, including but not limited to: petrification, force, fire, water, ice, lightning, charming, transmogrification (favors different kinds of chickens), rocks, regular bullets, poison, explosive, piercing, flash (like a camera, not a grenade), shotgun, etc.
The gun itself was purchased in a store back in Mordaria, and Galahad chose to improve it for self-defense. The runes were carved in by one of his siblings under his careful instruction, and would be able to contain a permanent enchantment. The words spoken were specifically "Whenever the cylinder is spun, the magic that is released will be a different effect that is useful in combat," and "When the trigger is pulled, a bolt of magical energy will be released from the barrel straight on and faster than the eye can perceive." Each spin lasts for about 3 minutes, and then it must be spun again to achieve a magical effect.