Mighty Mule MM271
#10 in Single swingFull review
A budget, UL 325 listed kit for a short, light single gate. Anything over 12 ft or 300 lb needs the MM371W or larger.
Amazon $259.99$259.99
300 lb12 ftYes
2.9/5
A low cost single gate kit for a light or medium driveway gate near the house, where a safety listing is not required.
- 550 lbGate weight
- 16 ftGate length
- Battery, solar readyPower
- 1 yearWarranty
Check price at Amazon$329
Price checked November 7, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Low price for a battery ready kit that runs on house power out of the box
- Opens in about 15 seconds
- Battery backup and solar can be added later through the included power supply
- Two remotes included
Cons
- No UL 325 listing stated
- Medium duty: 550 lb or 16 ft at most
- Remote range is only about 65 ft
- One year warranty
The TOPENS A Series family
Every TOPENS A Series model we rank, smallest first. Ratings compare each against its own gate type.
| Model | Gate weight | Rating | Price |
|---|---|---|---|
| TOPENS A5131 (this one) | 550 lb | 2.9/5 | $329 |
| TOPENS A8131 | 880 lb | 3.2/5 | $359 |
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its gate type. How we rank explains each one.
Specifications
| Model number | A5131 |
|---|---|
| Gate | |
| Gate type | Single swing |
| Heaviest gate | 550 lb |
| Longest gate | 16 ft |
| Time to open | 15 s |
| Power | |
| Power | Battery, solar ready |
| Motor voltage | 24 V |
| Build | |
| Remotes included | 2 |
| Weight | 23.4 lb |
| Warranty | 1 year |
Alternatives in this gate type
JUJIANG C026 Solar Single
#11 in Single swingFull review
A complete solar kit for a remote single farm or ranch gate on a budget. Its safety listing and duty rating are not published.
Amazon $369.99$369.99
770 lb16 ft
ALEKO AS600 Smart Kit
#13 in Single swingFull review
A single gate kit that arrives with the keypad, photo eyes and app control most buyers add later, for a heavy gate on house power.
Amazon $649$649
880 lb18 ft
Compare
Compare the TOPENS A5131 with any other automatic gate opener →
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