Mieke Crane said she was initially told her son would have to write a letter of apology to the school bus driver, serve detention Tuesday and face suspension from the school bus for bringing the Lego gun -- which is slightly larger than a quarter -- on the bus to Old Mill Pond Elementary School in Palmer Friday morning, WGGB-TV, Springfield, Mass., reported Wednesday.
"I think they overreacted totally. I totally do," Crane said.
She said another student yelled to the driver that the boy had a gun.
"She said he caused quite a disturbance on the bus and that the children were traumatized," Crane said.
Crane and the other child's mother, who did not want to be identified, said they believe the school is sending the wrong message with the punishment.
The principal of the school declined to speak with WGGB-TV, but Crane said she has since spoken to the official and her son will not be punished.