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SIGMA Junior 3/4 Size Acoustic Guitar, Solid Spruce Top, Dao Back & Sides, Natural Gloss, Rosewood Bridge, Premium Name-Brand Steel Strings, Mini Acoustic Guitar Suitable for Travel, Right (20MINI)

  • Based on 40 reviews
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Availability: Only 4 left in stock, order soon!
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Arrives Saturday, May 9
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Model: SIG20MININAT


Features

  • Standard Specs - Total Length: 37.3" ; Scale Length: 23.5" ; Total Body Length: 17.5" ; Number of Frets: 20 ; Premium Brand EXP16 (Phosphor bronze) steel string ; Solid tuning machine heads ; Item Dimensions: 37.3" L x 14.2" W x 3.8" H. Neck radius is 320R (=12.6 inches)
  • Handcrafted & Materials - The SIGMA acoustic guitar features handcrafted sturdy construction with solid Spruce top and ultra rate Dao sides and back with extremely high-end looking. Rosewood fingerboard & bridge. Natural gloss polished body w/ protective top binding. Beautifully designed body and size for the on-the-go & travel purposes. By using Dao, a dense wood it produces strong high-mids complemented by full and punchy low-mids and bass sound effect.
  • Warm, Rich Tone - New SIGMA models give more than a generous nod to vintage instruments, but they have modern elements to their sound and produce an open, warm tone with mids and bass. SIGMA guitar remains responsive and retains its tonal integrity, which are perfect for musicians-in-the-making or advanced players to play like the pros.
  • Quality, Authenticity, Affordability - Exquisitely designed with about 37-inch length, comfortably befit both beginning and experienced guitarists. Every detail matters. SIGMA provides the best quality for everyone on the music journey.
  • Every Sigma guitar is carefully inspected before shipping to ensure top quality.

Brand: SIGMA


Color: Natural Gloss


Top Material Type: Spruce Wood


Body Material: Dao


Back Material Type: Dao


Neck Material Type: Dao


Fretboard Material Type: Rosewood


String Material Type: Phosphor Bronze


Hand Orientation: Right


Guitar Bridge System: Fixed


Top Material Type: Spruce Wood


Body Material Type: Dao


Back Material Type: Dao


Neck Material Type: Dao


Fretboard Material Type: Rosewood


String Material Type: Phosphor Bronze


Material Type: Dao


Hand Orientation: Right


Guitar Bridge System: Fixed


Number of Strings: 6


Scale Length: 25.6 Inches


Item Dimensions L x W x H: 37.3"L x 14.2"W x 3.8"H


String Nut Width: 42.8 Millimeters


Item Weight: 7 Pounds


Item Dimensions: 37.3 x 14.2 x 3.8 inches


Instrument Size: 3/4


Brand Name: SIGMA


UPC: 812309029398


Manufacturer: Sigma


Manufacturer Part Number: SIG20MININAT


Included Components: Guitar


Model Name: Junior 3/4 Size Acoustic Guitar


Model Number: SIG20MININAT


Instrument: guitar


Color: Natural Gloss


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, May 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Hard To Believe
Model: SIG20MININAT
I’ve had this sweet little guitar for about a week and can’t leave it alone. It’s a joy to play. I’m bewildered by how they can make a guitar this good for such a low price. I’ve been playing a long time and have several guitars including some high end ones – Martin, Gibson, Gallagher, Collings, so I have some pretty good context for comparisons. The tone, intonation, projection, and playability of this little thing is excellent for it’s size. The overall cut and finish is exquisite. It’s lovely. Even the frets are finished just about perfectly. The tuners seem to be generic but appear to be quality - they’re finely geared, smooth, and they hold. It even comes with high quality strings. The packaging is custom designed for this guitar with a heavy-duty cardboard box, good Foam shock padding , and a protective cover for the guitar. The strings are even carefully wrapped. It has obviously been done with great care and consideration - I’d say a reflection of Sigma’s dedication to quality. It’s all dumbfounding considering it’s price. Is it equal to a Taylor mini or Martin 000 Jr? Not quite – but damn close – and take another look at the price. I love my high end guitars but I gotta say I’m a big Sigma fan now as well. PS. Several reviews mention some string buzz and have sent the guitar back. Mine had some buzz too. But I think they relieve the neck tension along with loosening the strings to minimize the chance of damage during shipping. They even provide a hex wrench for the truss rod. I restored the appropriate bow in the neck and of course that eliminated all the buzz. I have sever ... show more
Reviewed in the United States on March 10, 2026 by Maine Guy

  • Not as advertised
Model: SIG20MININAT
This is the second time I ordered this item. The first time only the guitar was shipped even though Amazon clearly states it comes with a gig bag, tuner, picks, and cleaning cloth. The only option Amazon gave me was to return the item. So I returned the guitar and ordered it again. Lo and behold, all I received the second time was the guitar. The guitar itself is decent. It sounds good,, plays nice and is quite beautiful. The Dao wood is stunning. The pick guard is a cheap vinyl appliqué and was pealing off when I opened the package. I anticipate it coming off at some point. Good choice for a youth or beginner. I’m not sure if I’m going to keep the guitar. Originally I wanted it for our grandson but I’m considering using it for a travel guitar. Of course you need a gig bag or case for a traveler, which this doesn’t have. I could by a gig bag separately, but if I do, this isn’t that good of a deal. I don’t know if it’s the fault of Walter’s Music or Amazon, but it’s frustrating not getting what was advertised. ... show more
Reviewed in the United States on February 6, 2026 by Charles Sebastian

  • Outstanding little guitar for the money
Model: SIG20MININAT
Sigma did a fabulous job with this model but don't hesitate to exchange if you get a dud (like I did). The 3/4 Junior sits somewhere between a Baby Taylor or Little Martin and the Taylor GS Mini in regards to size. It does not come with a bag but is incredibly pretty and playable right out of the box. It feels great in hand and is resonant and bright with plenty of sustain. This is a travel guitar and will not sound like a full-sized guitar and does not have a present low end. However, I found it pleasing to look at and listen to and fun to play. This would be excellent for a young person, campfire, office, travel, or couch guitar. Well done, Sigma. ... show more
Reviewed in the United States on December 4, 2024 by Sheridan

  • Most bang for the buck in an affordable guitar!
Model: SIG20MININAT
The media could not be loaded. I like everything about it. It sounds great, plays great, it's extremely comfortable, and it's beautiful. It punches way above its weight for how affordable it is! This is an amazing deal for a smaller body guitar. I've had trouble finding time to do the video review because every time I pick it up, I start playing and lose track of time. (It's really fun to play) My favorite part though is that I can sit in a regular chair and play guitar! With it's smaller size, I think it would be great for kids, for women who might be uncomfortable with a big dreadnaught, or for people who want an incredible travel guitar. It's perfect! ... show more
Reviewed in the United States on December 7, 2023 by Andrew Grant Mazak

  • Bad frets, terrible buzzing, unplayable.
Model: SIG20MININAT
The media could not be loaded. Just got the guitar and sadly disappointed by the fact that there is terrible buzzing at the 12th-14th frets across most strings. Not sure if it's a setup issue or the frets themselves but I'd expect the guitar to pass inspection, which this one clearly does not. Other than that the guitar seems well put together and looks nice. Will be returning it for a replacement. UPDATE: I got a replacement guitar and unfortunately it has the exact same problem but on different frets. This time frets one and two are completely unusable, terrible buzz. I don't recommend these guitars at all! ... show more
Reviewed in the United States on February 4, 2025 by Darkmatter661

  • Decent for an inexpensive guitar
Model: SIG20MININAT
It was a nuisance finally getting my hands on the guitar… they first shipped the wrong guitar, then the next one was lost in shipping, and finally this one. Now that I have it I’m satisfied for the price since I just needed a beater and travel guitar. The original setup wasn’t bad… decent action. Fret ends are not bad at this price point but could use some smoothing and polishing. The top is decent but has a slight warpy unevenness and the headstock has a fairly ugly stain discoloration… maybe an error in finishing or just open wood grain (not worth returning given the 3 weeks it took for this one to get here). Those are all the QC issues that are minor and ok in a guitar at this price. It plays pretty well, has a neck shape that suits my hands, and sounds pretty good for a smaller body size. QC and sound are not as good as a Firefly I have but that guitar is more money and too big for travel. I had hoped for a little better QC given the reviews but it’s good for my purposes. MUCH better guitar than a Jim Dandy I tried out. If you need an inexpensive smaller guitar it’s worth considering. ... show more
Reviewed in the United States on November 19, 2024 by HHIBIRD

  • Superb quality, beautiful woods and outstanding sound. Amazing for its price.
Model: SIG20MININAT
Beautifully crafted with superb woods not found in far more expensive guitars. The sound is impeccable and more vibrant than that of my large guitar. I highly recommend it.
Reviewed in the United States on May 29, 2025 by Centraal

  • The quality
Model: SIG20MININAT
Owesome quality for the price!
Reviewed in the United States on December 13, 2025 by Waldemar

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