Oklahoma City bombing conspirator Terry Nichols is asking a federal judge to order the sale of Nichols' personal gun collection, with some of the proceeds to go toward victims of the 1995 attack.

Nichols filed a handwritten court brief Tuesday protesting prosecutors' request to destroy Nichols' rifles, shotguns and handguns that were seized from his home after the bombing at the Alfred P. Murrah Federal Building.

Nichols, who is serving a life sentence in Colorado, originally asked that the guns be auctioned to partially fulfill his child support obligations.

Prosecutors argue that selling Nichols' guns in a public auction could lead to copycat crimes.

Nichols proposed to split the proceeds from the guns between his ex-wife and the bombing victims. He described the weapons as his "last remaining assets."

Nichols, now 60, is at the Supermax Penitentiary in Florence, Colorado.