GR Compu-Bal trumpet mouthpiece 63 rim
GR Compu-Bal trumpet mouthpiece 63 rim - 63SZ is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Quick Comparison - The GR 63 Series cup diameter is somewhat similar to a conventional 10 diameter.
Classic Blank is standard. Studio, Symphonic, and FatBoy are available as a special order on some models.
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.