The Kings won for the first time in December -- and for only the third time in 12 games.
Los Angeles scored four times in the first period and built a 7-0 advantage before the Sabres could get on the board. Buffalo has lost six of its last eight road games.
Michael Cammalleri began the outburst 3:55 into the first period, after which Brown, Preissing and Jaroslav Modry added first-period goals. Four of the Kings' scores came on the power play and another came shorthanded.