Detail 01
16.75mm cup diameter
On the narrower side of this Murphy range, which runs 17.5mm down to 16.5mm. Less lip inside the cup, so high notes come easier.

Independent shopping perspective
Silver-plated trumpet mouthpiece, MM3C size: 16.75mm cup, 5.35mm rim, 3.7mm throat, V backbore. For players wanting a warm, versatile all-round setup.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
On the narrower side of this Murphy range, which runs 17.5mm down to 16.5mm. Less lip inside the cup, so high notes come easier.
Detail 02
The V taper favors a warm, rounded sound and added resonance up high, rather than the hard edge of a bright commercial piece.
Detail 03
Shared across the whole MM range, so moving between MM sizes changes cup diameter without changing how the rim feels.
Detail 04
Also constant across the range. Sets airflow resistance, so size changes here are purely about cup and rim, not blow.
Detail 05
The standard finish. Slightly grippier and firmer under the lip than gold, and it tarnishes if left uncleaned.
Detail 06
MM1.5C is 17.25mm and aimed at symphonic and jazz section work. MM3C is smaller and leans versatile with warmth.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Cup diameter. MM1C is 17.5mm with a big, open sound and strong upper register; MM3C is 16.75mm, warmer and more versatile, with added resonance up high.
The 16.75mm cup puts less lip in play than the wider MM sizes, which usually makes the upper register easier. It will not replace practice.
No. This is a trumpet mouthpiece and the shank is cut for trumpet receivers.
Only feel differs. Silver has a bit more grip and a firmer feel; some players with plating sensitivities prefer gold. Sound comes from the cup, rim and backbore.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.