with the highest attention to detail, this hand-made instrument by Polish master builder Roman Koc provides exceptional playability, powerful sound and beautiful looks

tortoise pickguard for the vintage look

east indian rosewood fingerboard

with 20 frets and mother of pearl dots

active electronics with two delano sbc humbackers, black hardware from goth and ets, 24 frets with easy access

Body:  mahagony

Top : Walnut

Neck:  3 piece Walnut

Width:  nut 40mm; 24 fret 63mm

Thickness:  I – 20; XII – 23mm

Fingerboard: ebony

Head:  angled

Machine heads:  Gotoh GB 7 black

Nut:  ebony

Scale length:  34”

Radius:  14”

Number of frets:  24”

Pickups:  Delano SBC humbuckers

Controls:  Volume- 1 Balance- 1 DELANO 3-way EQ

Bridge:  ETS

Strings:  Daddario

Hardware colour:  black

Finish:  high polish

Colour:  natural

just like any other instrument from GMR, this bass can be custom-built according to your wishes (woods, hardware, pickups, string spacing, electronics, etc.). please contact us to make an appointment and try a similar instrument.

gmr flow-out 4 walnut

condition new

availability sold

gigbag included

shipping in Switzerland included


Gläserenstrasse 14, 8142 Uitikon Waldegg

tel +41 79 824 73 82