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SKU MAY-015220222

Mayones Regius Core 7 B27 7-String Baritone Guitar, 5A Quilted Maple Top, Galaxy Eye Black Satine

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Mayones Regius Core 7 B27 7-String Baritone Guitar, 5A Quilted Maple Top, Galaxy Eye Black Satine

FREE 2-Day Shipping


Feast your eyes on this stunning custom-ordered Mayones Regius Core 7 B27" straight from the workshop of the Polish master luthiers themselves! This 7 is a Baritone and sports a 27" scale length.

This is definitely one of the classier axes we've had in our arsenal, and that's thanks to the impeccable choices our Mayones experts here made when speccing out this beautiful piece. Some specs outside the norm include an insane 5A Quilted Maple top, the custom EXOTIC I-spec neck, custom binding, mixed-gold hardware and a stunning Galaxy Eye Black Satine finish.

The Regius line provides an excellent balance between classic design and modern tone. The neck on this 7-string is super comfortable and will require little-to-no adjustment if you're a 6-string slinger. The low-B is tight, punchy, and really brings the thunder. The extended 27" scale length lets you easily downtune to an A without worrying about string wobble or ugly fret-slapping. Even if it's your first baritone or your first extended range guitar, the adjustment period is really minimal. Of course, the excellent design is propelled even further by the excellent craftsmanship on this one.

The custom-wound, Mayones-exclusive Bare Knuckle TKO 7 pickup set, while designed for high-gain chug, surprised the players here at the shop with their awesome clarity on clean settings, especially with the coil-split on the volume control. Of course, the TKOs excelled the most at distorted riffage, and we were very pleased with how both single notes and chords sounded huge without getting muddy. A simple master volume control (with push/pull coil-splitting capability) makes this a straightforward 7-string weapon that always sounds great and won't leave you with any hand fatigue after long sessions or shows.

The result of everything here is a perfect marriage of tonewoods and electronics the likes of which we've rarely seen. This is another thoroughly impressive build in collaboration with our friends over at Mayones. We're so stoked with how it came out!


Regius series is a powerful neck-thru-body construction instrument, with hundreds of custom options available. Modern sound with a hint of classic shape. This perfect tool takes you to the highest peak of the instrument's sound.

BARE KNUCKLE TKO HUMBUCKER PICKUPS are specifically designed for Mayones. They are high output and each set is custom wound for the specific model that it's going into.

“Mayones and Bare Knuckle have a strong relationship going back many years so I was honoured when Dawid and his team asked me to design a custom humbucker set specifically for their guitars... Overall, the ‘TKO’ humbuckers offer a wide range of saturated rhythm and lead tones coupled with dynamic cleans perfect for modern rock guitar styles, and they’re the ultimate partner for Mayones Guitars.” – Tim Mills (Bare Knuckle)



  • Model: Regius 7 B27" Baritone
  • Color: Galaxy Eye Black Satine
  • Top: 5A Quilted Maple
  • Body: Swamp Ash
  • Binding: 3-Ply White ABS + Black Acrylic


  • Construction: Neck Through Body
  • Fretboard: Ebony
  • Neck: EXOTIC I - Wenge-Mahogany-Purpleheart-Maple / 11-Ply
  • Binding: 3-Ply White ABS + Black Acrylic
  • Scale Length: 27"
  • Fretboard Radius: 16"
  • Frets: 24, 2.80 x 3.34 Stainless Steel
  • Side Dots: Luminlay (glow-in-the-dark)
  • Nut: Black TUSQ
  • Headstock: Matches Body


  • Pickups: Bare Knuckle TKO 7 Humbuckers
  • Controls: Volume (push/pull), Tone, 3-Way Pickup Selector


  • Bridge: Hipshot 7-String Fixed
  • Tuners: Hipshot GripLock
  • Knobs: Black Metal Dome
  • Color: Mixed Gold


  • Case: Mayones HISCOX Deluxe Molded Hardshell
  • Serial #: RF2304674
  • Instrument Weight: 8.7 lbs.


Music Store Live is proud to be an authorized dealer for Mayones. This custom-ordered Regius 7 27" is 100% brand new and is being sold with a full manufacturer's warranty. Photos are of the exact guitar you'll receive.

Our in-house guitar tech will inspect, test, set up, and clean all of our instruments on site prior to shipping. All of our instruments are guaranteed to be fully functional upon arrival.