One Piece Chapter 1.1, page 25-26: Romance Dawn (Version 1)

Luffy grins and pulls his arm back, saying, "THEY'RE DOWN, HUH?". Shiruku is completely stunned, stammering, "WHA... WHAT JUST...!! HIS ARM... STRETCHED.". Luffy turns to her and asks, "SURPRISED? I TOLD YOU I ATE THE GOMU GOMU FRUIT, RIGHT? BECAUSE OF THAT, I...". Gyari is furious, his face turning red as he screams, "YOU REALLY PISS ME OFF!!! AHHH!!! WHERE ARE YOU AIMING!!! WHERE!? AT YOU OF COURSE, IDIOT!!!". He pulls out a pistol and shoots directly at Luffy, yelling, "JUST DIE ALREADY!!". The gun fires with a loud bang.

Shiruku covers her ears and screams in terror, "KYAAAAA!!". Gyari laughs triumphantly, "GYAHAHAHAHAHA!!", believing he has won. However, the bullet hits Luffy's chest, but instead of piercing him, his rubber skin stretches deep inward, absorbing the impact. Luffy grins and flexes his chest, shouting, "FUHN!!!". The bullet is launched backward, flying past Gyari and his shocked crew. Gyari's jaw drops in absolute disbelief, sweating profusely as he stares at Luffy.