Electric guitars

Ibanez GRGM21-BKN E-Guitar Mic

The Ibanez GRGM21-BKN is a compact, affordable electric guitar with versatile pickup options and strong appeal for younger players. Be prepared to check the setup and fret finish, as owner reports point to uneven quality control.

★★★★☆ 4.4/5 · 15 buyer reviews · 6 min read · updated 2026-10-07 · Tested by Cal Whitaker

Ibanez GRGM21-BKN E-Guitar Mic review

The Ibanez GRGM21-BKN is a 3/4-size electric guitar with a 564 mm scale, 24 frets, and a pair of Infinity humbuckers. At a listed price of 189, it is aimed at players who want a smaller instrument, including children learning electric guitar. The short scale can also appeal to adults who find a full-size neck less comfortable, or want a compact guitar for casual playing and travel.

Owner experiences suggest that its appeal depends partly on setup. Some received an instrument they could play after basic adjustments. Others reported problems with fret ends, the nut, neck condition, or pickup installation. One buyer needed two replacements before receiving a guitar that could be properly adjusted. That is a meaningful caveat at this price: inspect the instrument on arrival, and factor in adjustment work if needed.

Size, construction, and listed specifications

The 564 mm scale and 3/4 size are central to the GRGM21-BKN's feel. Parents describe the compact body and shorter reach as useful for younger players, while adult owners also report enjoying it. A shorter scale changes the spacing between frets and makes the instrument easier to manage for some hands. It also makes careful tuning and setup important, particularly if the guitar is used for chords across the neck.

The specification information supplied for this model lists both poplar and basswood for the body. Since those entries conflict, the body wood cannot be stated with confidence here. The neck is listed as maple, and the fingerboard as jatoba. Other listed details include sharktooth inlays, 24 medium frets, black finish, chrome hardware, and a solid bridge. No case or gig bag is included.

There are two Infinity humbuckers, with one volume control and one tone control listed. Some owners describe the pickups as splittable and report a five-way selector, with several combinations of full and split-coil sounds. Those detailed switching options come from owner reports, not the core specification list, so buyers should confirm the configuration of the instrument they receive rather than assume every reported switching detail applies.

Playability and sound

Owners generally find the guitar comfortable once its string height and intonation are set. One parent described it as a good fit for a child, while another said the small size made it comfortable enough for an adult to pick up regularly. The short scale can make bends and fretting feel manageable, and one experienced player chose it for its compact feel and access to 24 frets.

Sound reports are favorable but varied. Several owners consider the humbuckers a strong point and say the guitar works well for rock, including distorted tones. Other feedback describes the sound as decent for the price, but not especially full. Expectations should stay in line with an affordable, compact instrument. The guitar can work for practice and learning, but the reports do not suggest a consistent, high-end sound across every setup and playing style.

Setup and quality checks

Intonation, string height, and neck relief come up repeatedly in owner feedback. A high string action reportedly made chords sound out of tune when fretted, even though the open strings were tuned correctly. After adjustment, that owner found the guitar enjoyable to play. Other players also mention adjusting the truss rod and bridge, and some polished frets or softened sharp fret ends.

Tuning stability gets mixed reviews. Some owners say the guitar holds tune well after initial settling, while others need to retune regularly. One player found that careful string installation and stretching, followed by a proper setup, improved stability with.010-gauge strings. As with any guitar, tuning technique matters, but the short scale makes it especially sensible to check the setup and strings before judging how reliably it stays in tune.

Quality control is the bigger concern. Reports range from clean, well-finished examples to guitars with sharp fret ends, a low nut slot that caused string buzz, a twisted neck, or a pickup cover that needed repositioning. Some owners made adjustments themselves; others returned the guitar. These accounts do not establish how often defects occur, but they do support a thorough inspection of the neck, frets, nut, pickups, and tuning before keeping the instrument.

Verdict

The Ibanez GRGM21-BKN offers a useful combination of compact dimensions, 24 frets, and two humbuckers at a modest listed price. It can suit a young beginner, and its short scale has earned adult fans as well. The trade-off is inconsistent setup and finish reported by some buyers. Check the frets, neck, nut, and intonation as soon as it arrives, and arrange a professional setup if you are not comfortable making adjustments. With a sound instrument and careful setup, owners report a fun, capable small guitar. Without that check, the experience may involve extra work or a return.

Ibanez GRGM21-BKN E-Guitar Mic, front view
6.8/ 10 overall score
$189current price at the retailer
Check today's price price and delivery time at the retailer

Shipping and duties

The retailer ships from its warehouse in Germany. Prices are shown in US dollars and do not include import duties. Orders under roughly $800 usually clear US customs without duty; above that, a duty of a few percent may be collected on delivery. 30-day money-back and a 3-year warranty apply.

Scores by area

Where it shines, where it stumbles

What convinced me

  • Compact 3/4 size and short scale can suit children and players who prefer a smaller guitar.
  • Two humbucking pickups with a five-way switch offer a useful range of sounds.
  • The solid bridge and 24 frets provide practical features at a budget price.

What bugged me

  • Several owners report needing setup work, including adjustments to the action, intonation, and neck.
  • Tuning stability and fret-end finish vary between individual instruments.

Is it the right one for you?

Good pick if

A strong fit for younger beginners, adults with smaller hands, and players looking for a compact practice or travel guitar. Also worth considering for budget-conscious buyers comfortable checking or arranging a setup.

Look elsewhere if

Not ideal for buyers who expect flawless factory setup and consistent fret finishing straight out of the box. Look elsewhere if you need a full-size guitar or want guaranteed tuning stability without adjustments.
RockPopBlues

Suggested level: Beginner

Ibanez GRGM21-BKN E-Guitar Mic, $189Check today's price →

Specifications

Color
Black
Body
Poplar
Neck
Maple
Frets
24
Scale
564 mm
Pickup system
HH
Including case
No
Incl. gigbag
No
Top
None
Fretboard
Jatoba
Tremolo
No

What other players say

Owners often praise the guitar's compact size, comfortable feel, sound, and value, particularly for children and players seeking a smaller instrument. Several adults also enjoy using it at home or while traveling. Feedback on setup and build consistency is mixed: some receive a well-finished guitar, while others describe tuning difficulties, sharp fret ends, or neck and intonation issues that required attention.

5 ★
43%
4 ★
25%
3 ★
10%
2 ★
10%
1 ★
12%
Positive 68% Neutral 10% Negative 22%
For the price, it is a very good small instrument.
Now it is a great little rock machine.
In general, I recommend this instrument.

Up close

Ibanez GRGM21-BKN E-Guitar Mic, detail 2Ibanez GRGM21-BKN E-Guitar Mic, detail 3Ibanez GRGM21-BKN E-Guitar Mic, detail 4Ibanez GRGM21-BKN E-Guitar Mic, detail 5

Watch and listen

Watch the video demo on YouTube →

Before you decide

Questions players ask

Is this guitar a good size for a child?

Its 3/4 size and 564 mm scale suit many young players, though the right fit depends on the child's height and reach. One reviewer found it only just suitable for an eight-year-old.

Can an adult play it comfortably?

Yes. Adult owners report enjoying it as a compact home or travel guitar, and some prefer its shorter scale for easier reach.

Does it need a setup when it arrives?

It may. Owners describe adjusting the neck, string height, and intonation, and some report fret ends that needed smoothing.

What kind of sounds can it produce?

It has two humbucking pickups and a five-way switch. A reviewer describes split-coil and full-humbucker combinations, giving it a range of sounds for rock and other styles.

Does it stay in tune reliably?

Experiences differ. Some owners report good tuning stability after setup, while others say it needs regular retuning, especially with its short scale.

The last word from the bench

Its 564 mm scale and 3/4 size make the GRGM21-BKN a comfortable option for children and for adults who want a smaller instrument. Owners generally like its sound and value, while the two humbuckers and five-way switching offer more tonal variety than a basic beginner guitar. However, reports range from excellent condition to twisted necks, sharp fret ends, and setup problems, so inspect the guitar carefully after delivery. A professional setup may be worthwhile if you want it playing comfortably and staying in tune.

Ibanez GRGM21-BKN E-Guitar Mic, $189Check today's price →

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Ibanez GRGM21-BKN E-Guitar Mic

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