MM271 - Single Swing Gate Opener

  • Designed for light duty single swing gates up to a maximum of 12 ft long or maximum weight of 300 lbs.
  • REQUIRED (not included): 12 Volt Automotive or Marine Type Battery that produces a minimum of 250 cold cranking amps (CCA)
  • Ideal for the DIY (Do It Yourself) property owner, the MM271 comes equipped with detailed instructions, online how-to ,unlimited access to 24- hour technical support, and backed by a 12-month Warranty.
  • Perfect for all single gate types including ornamental, chain link, tube, panel, vinyl and wood.
  • Solar Capable: With the addition of a Mighty Mule 10-watt solar panel (Model #FM123).

Kit Contents
NOTE: Not all components are included for operation (BATTERY REQUIRED)

(1) MM271 Gate Operator and (1) Remote with Visor Clip, (1) AC Transformer, Mounting Hardware, Instruction Manual

WARNING: This product can expose you to chemicals including 1,3-Butadiene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

WARNING: Cancer and Reproductive Harm -

  Buy Online   Find a Retailer
Mighty Mule Store
Mighty Mule Store
Home Depot
Home Depot
Buy at Amazon
Gate Length Up to 12 ft (3.7m)
Gate Weight Up to 300 lbs
Gate Type Single Swing
Warranty 12 month
Battery (not included) 12 Volt
Max Gate Length Max Gate Weight
12 ft 300 lbs
10 ft 300 lbs
8 ft 300 lbs
6 ft 300 lbs
Don’t see your gate length or weight? Contact us for a custom solution.


Mighty Mule MM271 Single Gate Operator is rated 3.0 out of 5 by 1.
Rated 3 out of 5 by from Replaced older MMule single arm unit, sad. My MMule single arm unit started failing, so I purchased the NEW MM271. Installation was a disappointment since I was hoping to swap out the old unit --- They are very different. Length, wiring, setup. 1. Old had cast aluminum mounting flange, NEW has only plastic. This is a downgrade. 2. Old had good setup procedures, NEW is oddly horrible. For example, to program a remote you turn off unit, press remote, turn on unit. BUT what keeps someone else from doing this anytime they want? (no tools required). 3. Other setup issue - you do the same thing to program stop location. How can that be? I am still not sure, I did get it to work, but I am not sure I could do it again without messing with the remotes that are setup. 4. Receiver distance is not good at all. The old MMule unit would trigger from 50+ feet away every-time, NEW unit requires me to be nearly in the gate path before triggering. 5. Features have been cut back - No AUX connection for instance. Ant is mounted at the control box which would obviously cause electrical/RF interference since the Ant and all of the cable must cross. In summary, it does open the gate. IF you are doing this for your first time it may be dandy, but if you have any experience with the older products YOU WILL BE DISAPPOINTED.
Date published: 2022-04-29
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