STIHL engine technology means low fuel consumption, longer run times and reduced emissions in this high-powered chain saw. The MS 391 features our newest engine technology that adds fuel efficiency while reducing emissions as compared to other models. Though equal in weight, the MS 391 is more powerful than the MS 311. Add to that an optimal power-to-weight ratio and you have a chain saw that's cut out for the big jobs in field, farm and ranch. Felling trees, cutting firewood and cleanup after the storm just got a whole lot easier with the rugged MS 391.We service what we sell! Murdoch's operates regional service centers. Our technicians and transportation system ensure that your power equipment will be serviced and back in your hands in 2-4 weeks under typical circumstances, and sooner than that if at all possible. Please Note: All power equipment is fueled, oiled and started on location by our team members. Product is not sold in boxes. Please bring appropriate vehicle for transport, and allow extra time when picking up power equipment. Warranty paper must be filled out at time of pick up. | STIHL MS 391 Chainsaw 20"