9/16-24 Muzzle Shim Kit | Precision Laser-Cut Timing Shims | Made in Wisconsin

Precision 9/16-24 Muzzle Shims – Made in Wisconsin by Fox Valley Firearms

Finding quality 9/16-24 muzzle shims shouldn’t be difficult—but for years, it was. After threading hundreds of hunting rifles in our gunsmithing shop, we discovered that many popular hunting barrel profiles require 9/16-24 threads, yet quality timing shims simply weren’t available.

So we designed our own.

Every Fox Valley Firearms 9/16-24 Muzzle Shim Kit is proudly manufactured in Wisconsin using our in-house fiber laser for exceptional precision and consistency. Each shim is laser cut from high-quality material to provide a clean, accurate fit against the barrel shoulder, making it easy to properly time your muzzle brake, compensator, or suppressor mount.

These are the same shims our gunsmiths use every day in our shop, and they’ve been proven on hundreds of customer rifles.

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Why Choose Our 9/16-24 Shim Kit?

Unlike generic shim kits, our shims were specifically designed for 9/16-24 threaded barrels, one of the most common thread patterns found on lightweight hunting rifles.

Features

• Precision laser-cut on our in-house fiber laser
• Proudly Made in Wisconsin, USA
• Designed specifically for 9/16-24 muzzle threads
• Precision ground for consistent thickness
• Fits cleanly against the barrel shoulder
• Perfect for timing muzzle brakes and suppressor mounts
• Used daily by our professional gunsmiths
• Manufactured by Fox Valley Firearms

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Perfect for Timing Muzzle Devices

Proper timing is critical for the performance of many muzzle devices. Our shim kit makes it easy to correctly index:

• Muzzle Brakes
• Suppressor Mounts
• Flash Hiders
• Compensators
• Hybrid Muzzle Devices

Whether you’re installing a new brake at home or finishing a custom rifle build, these shims provide a secure and professional installation.

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Kit Includes

Each kit contains:

• 5 precision laser-cut 9/16-24 muzzle shims

We’ve found five shims are more than enough to properly time virtually any compatible muzzle device.

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Trusted by Professional Gunsmiths

These aren’t imported shims pulled from a warehouse shelf.

They’re manufactured in-house by Fox Valley Firearms and are the exact same shims our gunsmiths rely on every day when building precision hunting rifles, installing suppressors, and timing muzzle brakes for customers across the country.

When we couldn’t find a quality 9/16-24 shim kit, we built one ourselves.

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Frequently Asked Questions

What thread pattern are these for?

These shims are specifically designed for 9/16-24 threaded barrels.

What are muzzle shims used for?

Muzzle shims allow you to correctly time or index a muzzle brake, compensator, flash hider, or suppressor mount so ports and baffles are properly aligned.

Are these made in the USA?

Yes. Every shim is manufactured in Wisconsin using our in-house fiber laser and inspected before packaging.

How many shims come in the kit?

Each kit includes five precision-cut shims, which is typically enough to properly time one muzzle device.

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If you’re looking for precision 9/16-24 muzzle shims that are made in the USA and trusted by professional gunsmiths, the Fox Valley Firearms 9/16-24 Muzzle Shim Kit delivers the quality, consistency, and fit you need for a professional installation every time.

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