Backbores and Tops

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 mouthpiece...

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,...

Our Standard Series Mouthpiece Tops in Beautiful, Comfortable Acrylic! I started making and playing on acrylic mouthpiece tops due to my allergies to silver and gold, but they've become incredibly popular with our customers as well! They're super comfy!...

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...

 ACB  "C" Series Copper Trumpet Mouthpiece Tops:   Click here to see equivalencies!     These are brand new in my shop and offered in silver plate.   Why copper?      In general  solid...

Special O.P.S. - Optimal Pressure System       The Warburton "Special O.P.S." - Optimal Pressure System There's no such thing as "no pressure" when it comes to playing the trumpet. However, too much...