The Original Wedge Two Part Mouthpiece Line
Backbores are the other half of the part system. Trumpet backbores can be one piece or two piece. One piece backbores come in sizes S, M, and ML and a a great option when players do not want the option of gap adjustment or the potential to use a short shank for C trumpet.
Cornet backbores are one piece and can be used with Wedge tops for cornet or piccolo trumpet. They are available in silver or gold plated brass.
Wedge backbores have the same threads as Warburton, Kanstul, and Picket Brass backbores.