Backbores and Tops

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ACB  Standard Backbore
ACB Heavy Backbore
ACB Standard Cornet Backbore

Austin Custom Brass Trumpet Backbores

$95.00 $78.00 Sale
Austin Custom Brass Backbores   ACB backbores are now in stock! All ACB tops and backbores utilize the now universally accepted "Warburton" threads, making them compatible with almost every other maker's modular components! Check out our...
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Austin Custom Brass Standard Series Trumpet Mouthpiece Top

$95.00 $75.00 Sale
Mouthpiece Tops From ACB! Making custom mouthpieces is one of the main reasons I opened up my shop. I wanted to make a mouthpiece that felt comfortable, had a rich sound full of overtones, and didn't zap my endurance! After a lot of time on the lathe,...
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Austin Custom Brass Acrylic Trumpet Mouthpiece Tops

$95.00 $74.99 Sale
 Synthetic, hypoallergenic, denser than delrin, beautiful sounding acrylic trumpet mouthpiece tops!   Acrylic tops are available in our standard blank only. Click here to see equivalencies!   All threaded tops are compatible...
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Currently in-stock and ready to ship immediately.

ACB GEN II Trumpet Tops

$125.99 $84.99 Sale
  For 6 years I have been waiting for this moment and it's finally here!   A fully 100% in-house made mouthpiece!   We are beyond excited to proudly present the ACB Gen II trumpet tops.   Why go to a new series of...
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All New KA Series Commercial Backbores

$105.00 $75.00 Sale
ACB KA Series Backbores - The Commercial Sound You've Been Waiting For Having the right backbore is a huge component of finding your perfect mouthpiece, especially in high pressure lead trumpet/commercial settings. Our KA Series backbores are designed...
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ACB Custom Mouthpiece Blowout Sale!

$179.99 $99.99 Sale
When we make custom mouthpieces, it is common for us to make duplicates in case the customer loses that mouthpiece or it becomes damaged. These are all brand new mouthpieces that we are selling to make room for new inventory! Please email us with any...
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Available in White or Black Delrin.

In-shop ACB Delrin Screw Trumpet Mouthpiece Tops

$89.99 $69.99 Sale
  ACB  Delrin  Trumpet Mouthpiece Tops (all tops in ACB  standard blank)   Special introductory pricing! Trent's new lathe setup in his office now is running smoothly enough for Delrin top manufacturing of any one of our...
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