Backbores

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All New KA Series Commercial Backbores

$105.00 $75.00 Sale
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 to help you customize the sound and feel of your mouthpiece when matched...
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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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