Annular Damper, component of the Chainsaw Anti-Vibration System. Models: 44 044 C 044 W 46 046 C 046 Magnum BR 046 W GS 461 GS 461 GS 461-Z GS 461-Z MS 440 MS 440-D MS 440-N MS 440-W MS 460 MS 460 Magnum MS 460-D MS 460-R MS 460-VW Arctic MS 460-W MS 461 MS 461 MS 461-R MS 461-R MS 461-VW MS 461-VW MS 461-Z Magnum MS 461-Z Magnum