"I would like to see it. Thank you." Musashi said. It would be good to study foreign martial arts. If what he knew of the tournament held true, he was liable to come across fighters from far across the sea, and knowing their techniques would be advantageous.

Musashi pulled the revolver from the glove compartment. "This is..."
Musashi examined it. It was a gun, but smaller than the rifles of his time. Carefully, he ejected each bullet. This gun held six. The hammer didn't carry a fuse.
Musashi aimed the unloaded revolver forward, and fired. Click. The hammer pulled back on its own, and the cyclinder turned. He pulled it a second time, carefully examining the weapon.
He was not at a military barrack. This type of weapon was common.

"...Warfare sure has changed since my time, hasn't it?"