Introducing The Sentinel

Thunder Boom's New Flagship Signal Cannon in Honor of America's 250th Anniversary

Some projects begin with a simple question.

"What if we built the finest signal cannon we could—one that honors America and is as enjoyable to load as it is to fire?"

The answer is The Sentinel.

Inspired by traditional field artillery, The Sentinel combines timeless styling with modern precision manufacturing to create what we believe is the most refined signal cannon we've ever produced.

Every detail was intentionally designed—from the precision-threaded breech and solid steel carriage to the reusable Winchester brass cartridge system that makes loading quick, consistent, and satisfying.

This isn't just another noisemaker.

It's a piece you'll be proud to display, fire, and eventually pass on.

Why "The Sentinel"?

A sentinel stands watch—steadfast, dependable, and enduring. We wanted a name that reflected the craftsmanship, permanence, and patriotic spirit behind this cannon. Built to honor tradition and celebrate the moments that matter, The Sentinel is designed to stand the test of time.

Built for Tradition

Signal cannons have long been used to celebrate milestones, honor service, mark holidays, and gather friends and family together.

The Sentinel continues that tradition with an unmistakable boom and an equally impressive presence.

Whether displayed in a collection, fired on Independence Day, or brought out for family celebrations, it's designed to become part of your family's story.

Crafted in America

Every Sentinel is proudly manufactured in our Utah shop using USA-certified steel and finished with the attention to detail we've become known for.

The included all-steel carriage provides authentic field cannon styling while offering a stable, durable platform built for years of use.

Specifications

• 1.375" Bore

• 24" Overall Length

• USA-Certified Steel

• Precision-Threaded Breech

• Reusable Winchester Brass Cartridge System

• Solid Steel Carriage Included

• Also included: 3 bronze cartridges.

• Need additional cartridges? Extra cartridges are available separately. Add as many as you need before checkout. Order >>> HERE

The Sentinel is built to order, with an estimated lead time of 4–6 weeks.

Some traditions deserve more than a single celebration.

They're meant to be passed from one generation to the next.

The Sentinel. Built to Last.

Happy 250th Birthday, America. 🇺🇸