Up for sale is a Harrelson Trumpets 5MM Modular Mouthpiece System. This is the ultimate tool for the serious trumpet player looking to fine-tune their equipment to their exact playing needs. The 5MM system allows you to swap out every component of the mouthpiece to achieve the perfect balance of rim comfort, cup depth, throat size, and backbore resistance.

This kit includes:

• Rims: 3 included (1 Silver, 1 Gold-plate, 1 Black Delrin/Polymer for cold weather/comfort).

• Cups: 4 various depths/shapes to adjust tone and brilliance.

• Throats: 8 interchangeable throat segments to customize airflow and backpressure.

• Bodies: 2 different body styles (standard and tapered).

• Backbores: 3 threaded backbores for final compression adjustment.

• Accessories: 1 Nut/Locking ring and the original laser-cut wooden presentation/storage box with assembly instructions engraved on the lid.

Condition:

The set is in excellent, well-cared-for condition. Threads are clean and smooth. Some minor surface tarnishing on the brass components is present, which is typical for raw brass/gold-plated modular parts and does not affect playability.

Note: Please see photos for the specific throat sizes and cup markings included in this set. Please let me know if you have any questions. This will be shipped with USPS priority mail.