A high-performance, high-tech, fuel-efficient chainsaw.

Model Features

  • Reduced-Emission Engine Technology - Caring for Nature
    The STIHL Inc. “Caring for Nature” seal identifies its powered products that are more environmentally conscious, producing zero or low exhaust emissions. STIHL Inc. defines “low exhaust emissions” as being cleaner than EPA and/or CARB exhaust emission standards.

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  • Built in the USA
    Indicates products that are built in the United States from domestic and foreign parts and components.

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  • Pre-Separation Air Filtration System
    This time-saving technology boosts the efficiency of the engine’s filter system, doubling the time between air filter cleanings. Air drawn into the engine is first separated via centrifugal force, ejecting the heavier dirt particles before being routed to the air filter. This pre-separation means less dirt to be captured by the air filter, resulting in less frequent cleaning and maintenance.

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  • Anti-Vibration System
    STIHL has developed a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience.
  • Side-Access Chain Tensioner
    The side-access chain tensioner makes it much more convenient for the user to adjust the saw chain with a bar wrench as opposed to the typical location of the guide bar adjustment screw.
  • Toolless fuel and oil caps with retainers
    Simply lift the lever and twist the caps to remove or tighten. There‘s no need to use a tool to tighten or loosen.


50.2 cc (3.06 cu. in.)
2.6 kW (3.49 bhp)
5.6 kg (12.3 lbs.)
500 cc (16.9 oz.)
240 cc (8.12 oz.)
26 RM3
GUIDE BAR LENGTHS* (Recommended ranges)
40 to 50 cm (16" to 20")
STIHL recommends #3634 (26 RM3 67) OILOMATIC® saw chain and 16" 3003 812 6813 Ematic™ guide bar combination. The actual listed guide bar length can vary from the effective cutting length depending upon which powerhead it is installed.

Important Information

WARNING! The occurrence called “kickback” can cause serious or fatal injury. Always read the instruction manual carefully before using your saw. STIHL uses a green and yellow color-coding system to help you select a powerhead, bar and chain combination that complies with the kickback requirements of ANSI Standard B175.1 (gasoline-powered saws) and §30 of UL 1662/ ANSI Standard B175.1 (electric chainsaws). Ask your STIHL dealer about safe operating procedures and the advantages of the STIHL Quickstop® chain brake, STIHL Quickstop® Plus (Q) additional chain braking feature, STIHL reduced kickback bars and STIHL low-kickback saw chains.

STIHL recommends the use of green reduced kickback bars and green low kickback chains on all STIHL chainsaws.

* The actual listed guide bar length can vary from the effective cutting length based on which powerhead it is installed on.

Note: STIHL recommends use of fuel with no more than 10% Ethanol content. Using fuel with greater than 10% Ethanol content may cause damage to your equipment and may void your STIHL warranty. Learn More…

WARNING! Improper use of any power tool may cause serious or fatal injury. Read, understand and follow carefully the operating and safety instructions in your instruction manual before using such products.

STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.


MS 271 FARM BOSS® is rated 4.7 out of 5 by 419.
Rated 1 out of 5 by from Doesn't live up to the Stihl reputation Owned the saw for a couple of years with relatively light use around the yard. Noticed it was getting progressively harder to start to the point where I just dropped it off at the shop today where I purchased it. They told me it will be at least a week before they can even look at it to add insult to injury. This is my first Stihl saw and probably my last. I must have got a lemon given the other numerous positive ratings.
Date published: 2017-05-17
Rated 1 out of 5 by from Oil dispenser did not work. Sent back for repairs on multiple occosions. Will not buy another stihl chainsaw. Oil did not applicate as needed and bar/chain heated and dull chain. nobody could fix it. too expensive and the stihl brand seems to be changing to more homeowner oriented product.
Date published: 2017-05-15
Rated 5 out of 5 by from All around great product for the price! Typical stihl product as long as you take care of it performs great. Always buy stihl due to quality & reliability. As long as you're not a pro logger this saw should handle all your needs.
Date published: 2017-05-11
Rated 3 out of 5 by from More Trouble than I expected... I bought the MS270 after having had a 70' White Oak tree fall during a storm in my back yard. Thinking that the chainsaw would be a great investment and a fun Saturday afternoon's-worth of work, I purchased this little saw. Please remember that this tree is approximately 20" in diameter so my chainsaw was fitted with a 20" bar.The good: Starts easy, Good Name, Good stylingThe bad: Chain will not stay sharp for more than a few cuts. Bought the "carbon-tipped" chain and it lasted a bit longer (~2 hours of straight cutting). Lack of power for this size tree. A Bradford Pear, Pine, or any tree with 8-15" diameter will cut fine with this saw, but not a real "Tree". First chainsaw was filled with straight gas from dealer and burned up within a couple of hours. Ace replaced it (Thank you Ace!) no questions asked. I am on my fourth chain, the tree is still 1/2 there, laying in my yard. I have spent about 5 days cutting and about 5 trips back to Ace for help, problems, etc.Conclusion: if you can't afford for someone to do the work for you, buy the Biggest, Baddest, Lumberjack, Giant Redwood-cutting, version of this saw that they make. Put the carbon tip on it quick, and buy two extra ones for the long term. Plan at least a week for the work.Do I recommend this product? Yes, sort of...for ornamental trees, slender pines, etc.-->yes. For full-sized maples, oaks, etc. Heck no!
Date published: 2017-05-09
Rated 5 out of 5 by from Best saw I've ever used Always went with best price but not any Sthl until I moved to Pacific Northwest. Have 2 acres to maintain with a lot of fir and alder. Winds knock em down and I get great firewood. I have purchased 3 Stihl products since moving here 2 years ago.
Date published: 2017-05-08
Rated 5 out of 5 by from great great saw love easy starting and great performance
Date published: 2017-05-08
Rated 5 out of 5 by from Loving it Still early, only a couple trees down, but so far so great. Easy to start, keeps running, plenty of power, easy to tension the chain, not a single complaint.
Date published: 2017-05-07
Rated 5 out of 5 by from Great Saw I have a lot of trees and limbs fall all of the time. It was time to get my own saw and deal with it. This saw starts easily, runs smoothly and cuts very well. I'm not in the process of clearing out some small trees and it works extremely well. Love this saw!
Date published: 2017-05-04
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Standard Features

  • Common Features for Chainsaws
    View the features common to many STIHL chainsaws.

You Will Also Need

For Your Safety


Chainsaw Safety and Maintenance - Video
Product Instruction Manual (PDF)
Product Safety Manual (PDF)
STIHL Limited Warranty
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