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GRGM21M BKN
GRGM21M Black Night (more images) Red copyright sprite

The GRGM21M is an RG-style short-scale solid body electric guitar model introduced by Ibanez in mid-2009. It is produced in China as part of the entry-level GIO line.

The GRGM21M features a basswood (later poplar) body bolted to a 22" (560mm) scale maple neck with a 24-fret maple fingerboard with dot position markers. Components include dual Ibanez Powersound humbucking pickups and a standard hard-tail bridge.

For 2017 the Powersound pickups were replaced with Ibanez Infinity R humbuckers. For 2018 the bridge was specified as the F106. For 2019 the body species was once again basswood and the 3-way lever pickup selector was replaced with a 5-way.

The GRGM21M was offered as part of the IJM21M Jumpstart package also containing a practice amp and various accessories sold in the US. The "Black night" (BKN) color was available only as part of this package. The GRGM21M is also sold with a gig bag with a package model number of GRGM21MGB.

Similar models and special editions

Similar models are the GRGM21, which features a rosewood fingerboard with "sharktooth" inlays rather than the maple fingerboard with dot inlays on this model and the left-handed model of the GRGM21, the GRGM21L.

Several GRGM21M limited edition models have been produced, including:

Specifications

Specifications for GRGM21M
Model name: GRGM21M / IJM21M
Year(s) produced: 2009–2019
Sold in: Asia 2019 / China 2019 / North & South America and Oceania 2009–2018 / USA
Made in: China
Finish(es): Black Night (BKN) 2012–2014 (kit only) / Blue Burst (BLT) 2020 / Candy Apple (CA) 2019–2020 / Jewel Blue (JB) / Metallic Light Green (MGN) 2016–2019 / Metallic Purple (MPL) 2015–2020 / Orange Burst (ORB) 2020 / Red (RD) 2009–2016 / Yellow (YL) 2009–2014; 2016–2017 / Vivid Pink (VPK) 2015–2018 / Walnut Sunburst (WNS) 2015–2020
Body
Body type:
Solid body
Body material:
2009–2012: Basswood
2013–2018: Poplar
2019–2020: Basswood
Neck joint:
AANJ
Bridge:
2009–2017: Fixed bridge
2018–2020: F106 fixed (10.5mm string spacing)
Pickguard:
Black
Hardware color:
Chrome
Neck
Neck type:
GRGM
Neck material:
1-piece maple
Scale length:
564mm/ 22.2"
Fingerboard material:
Maple
Fingerboard inlays:
Black dot
Frets:
24 / medium
Nut:
Black plastic (43mm)
Electronics/ Strings
Pickup configuration:
HH
Bridge pickup:
2009–2016: Ibanez Standard/PSND2 (H)
2017–2020: Ibanez Infinity R (H)
Neck pickup:
2009–2016: Ibanez Standard/PSND1 (H)
2017–2020: Ibanez Infinity R (H)
Controls:
2009–2018: Master volume / master tone / 3-way lever
2019–2020: Master volume / master tone / 5-way lever
Output jack:
¼" mono
String gauge (factory):
.010/.013/.017/.026/.036/.046
Factory tuning:
1E,2B,3G,4D,5A,6E (E Std.)

Ibanez catalog images

  • 2010 USA catalog
  • 2011 North/Middle/South America & Oceania catalog
  • 2011 USA catalog
  • 2012 North/Middle/South America & Oceania catalog
  • 2012 USA catalog
  • 2013 USA catalog
  • 2013 USA catalog (Jumpstart kit)
  • 2014 USA catalog
  • 2015 USA catalog

Images

Additional finishes/ details
2020 GRGM21M BLT 5A 01
Blue Burst
2019 GRGM21M CA 5A 01
Candy Apple
GRGM21M JB
Jewel Blue
2016 GRGM21M MGN
Metallic Light Green
GRGM21M MPL
Metallic Purple
2020 GRGM21M ORB 5A 01
Orange Burst
GRGM21M RD
Red
2016 GRGM21M YL
Yellow
GRGM21M VPK
Vivid Pink
GRGM21M WNS
Walnut Sunburst
HH 3-way toggle
Pickup switching diagram (2009–2018)
Controls VT3L
Control layout (2009–2018)
HH 5-way single-split
Pickup switching diagram (2019–2020)
Controls VT5
Control layout (2019–2020)

Sources

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