Everything seems to have some sort of meaning, but the peacemaker just feels random.

  • Part of the running joke WRT Seamus's hat, IIRC.
    – BCdotWEB
    Commented Oct 11, 2021 at 9:09

1 Answer 1


In my opinion it is kind of memorabilia which Marty is leaving behind for Seamus.

We can also interpret it as a symbol of courage which Marty stood up for and defeated Tannen.

Since generation of McFly has always been bullied by that of Tannen's, it was a symbolic message from Marty to Seamus for being courageous so that coming generation of McFly can stand up for themselves.

Also because Seamus didn't have a gun and Marty didn't need it back in 1985.

  • Though he mentions just trading it in for a new hat….. Commented Oct 12, 2021 at 21:22

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