The GRGM21MGRG miKro is a GIO seriesRG-style short-scale solid body electric guitar model introduced by Ibanez in 2010.
The GRGM21M features a basswood (later poplar) body bolted to a 22" (560mm) 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.
The GRGM21M was offered as part of the IJM21MJumpstart 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: