Build MY Mouthpiece

Professional Race Car drivers are backed by 24/7 support teams to shave seconds from every lap.

Winning athletes train with the best coaches using cutting edge technologies and gear.

Now you can take your playing to the next level with Harrelson on your team.

Discover the world's most efficient mouthpiece solutions available in variations as diverse as your musical endeavors.
We guarantee we will help you improve or your money back!

students & educators save up to 50%
on a harrelson mouthpiece kit
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Everyone else saves 30% - see our social media for details...

improve comfort - play longer - maximize range

We have worked closely with thousands of trumpet players over the past 20+ years to discover comfort and fit are more important than any other factor. We have listened to your concerns and developed a system that guarantees a perfect fit to you as an individual.

The "one size fits all" approach doesn't fly here. We build every solution around your personal needs.

FREE unlimited parts exchange for the first 30 days. Full money back guarantee.

Questions?

Call the 5MM Hotline at 303-657-2747

Ready to build your mouthpiece?

Your adventure begins with our 9-piece kit
Includes everything you need to set up two completely different sizes with 6 variations in tone color, attack and projection.

From this starting point, you can add components at any time to build endless variations suitable for every playing situation.

5MM Modular Mouthpiece (9pc Kit)

$405.00 - $500.00

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need more options?

Our deluxe kits give you more options to discover more solutions

5MM Mouthpiece (19pc & 20pc Kits)

$600.00 - $700.00

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Educator Mouthpiece Kit (40pc Kit)

$1,400.00

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