Selling a Brand New, never used boutique Mastery Bridge M1 Kit for Fender Jazzmaster, Jaguar, and other American-spec offset guitars.

This unit is completely untouched, pristine. It has batch/serial number 613.

The M1 model is the gold standard for USA Fender offset players. It eliminates the notorious buzzing, string-slipping, and tuning stability issues found in stock vintage bridges, while increasing acoustic sustain and tonal clarity.

This is a complete kit that INCLUDES the Mastery body thimbles (mounting cups), making it ready for a complete upgrade or a high-end custom guitar build.

Condition:

• Brand New / Mint: Never installed, never used. Kept safely in its original packaging. No scratches, no wear—exactly as it left the factory in Minneapolis.

What’s included:

• 1x Genuine Mastery Bridge M1 (Baseplate Serial 613)
• 2x Original Mastery Mounting Posts
• 2x Original Mastery Body Thimbles (Mounting Cups)
• Original Mastery retail packaging / box

Key Technical Specifications:

• Model: M1 Kit (USA Spec)
• Serial / Batch Number: 613
• Baseplate Material: CNC water-cut solid 304 Stainless Steel
• Saddles: Solid brass with a proprietary, self-lubricating hard chrome plating
• String spacing: 52mm from E to E
• Design: Patented non-rocking dual-saddle design with deep V-grooves
• Country of Origin: Crafted and assembled in Minneapolis, MN, USA

Item will be packed with professional care inside an additional shipping box to protect the original packaging. Shipped quickly with Track & Trace.