Big. fat. Responsive.

The world's most technologically advanced

Trumpet, Cornet, Piccolo Trumpet, and Flugelhorn Mouthpieces.

Our work carries our signature.

We stand behind it.

We stand behind you.

We are GR Technologies.

****Mouthpiece Availability***

We are now only taking phone or email order requests.

Please email us [email protected] or...

Phone, Text, Whatsapp: +1 705-715-7060

Leave Secure Message: +1 262-965-2000

Hearing Rumors?

GR is currently entertaining offers to purchase our company. Gary has been at this particular chapter in his life for over 25 years and it is time to slow down just a bit. Till then, we still have limited inventory available and can maybe even make a few more if what you want is not in stock. That's all we can say for now. If you need a backup...order it asap if you want an Original GR made by the man himself.

If you need any backup mouthpieces or have always wanted a GR, the time is now!

Brian Scriver

Find out how...

GR Technologies has been redefining the industry's standard since 1998.

The GR No-Discontinuity Design allows for a perfect blend of rim to cup, to throat, to backbore for optimum performance.
Gary Radtke's technical background includes over 30 years of machine tool building, tool making, manufacturing, and design. These qualifications far exceed those found in the mouthpiece manufacturing industry today.
Our parameters are held to the closest tolerance and each part is inspected many times during the manufacturing process.
Because the sound wave is setting up faster in a GR Mouthpiece, accuracy is greatly improved.
All aspects of your playing are made easier with our state of the art designs and superior manufacturing processes.