Stihl MS 391 20" Chainsaw 852 Attachments 2-stage commercial-grade air filtration for

2-stage commercial-grade air filtration for long engine life

Vibration reduction system for increased comfort

Discharge (in): 3

Radius E-Series

Lazer X-Series

Stihl MS 391 20" Chainsaw 852 Attachments 2-stage commercial-grade air filtration forEngine 64. 1 cc Chain 33RS3 72 Bar 20" 8921 Overview STIHL engine technology means low fuel consumption, longer run times, and reduced exhaust emissions in this high powered chainsaw. The MS 391 features STIHL engine technology that adds fuel efficiency while reducing exhaust emissions, as compared to other chainsaw 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