Ruger RXM Threaded Handgun Barrel Kit 9mm Luger 4.5" 1/2x28 Theaded Barrel

The Ruger RXM Threaded Handgun Barrel Kit gives you the suppressor-ready setup your 9mm RXM deserves. If you've got an original-spec RXM with a 4-inch non-threaded barrel and want to run a suppressor or muzzle brake, this factory-made replacement barrel opens up your options. The 4.5-inch alloy steel barrel is finished in black nitride for durability and reliability, and it threads at 1/2x28—the most common host pitch for 9mm suppressors and brakes on the market.

Installation is straightforward: no gunsmithing required. Ruger designed this kit to swap in cleanly, and it includes a threaded barrel guide rod assembly and thread protector to keep your threads safe until you're ready to mount a device. Because it's a genuine Ruger factory accessory, you get the fit and function you'd expect—no guesswork, no fitment surprises.

Before you order, check your state and local laws. Threaded barrels face legal restrictions in California, Connecticut, New York, Washington, Washington D.C., and Chicago, Illinois. Ruger cannot ship to those jurisdictions, and you should verify your own locale permits possession before purchasing. If you're in a free state and you've been wanting to suppress or tune your RXM's muzzle report, this is the straightforward path to do it.

Key Features

• Factory Ruger RXM threaded barrel replacement—4.5 inches, 1/2x28 thread pitch
• Alloy steel construction with black nitride finish for corrosion resistance
• Accepts any standard 1/2x28 Class 2A muzzle device (suppressors, brakes, etc.)
• Drop-in installation—no gunsmithing or special tools needed
• Threaded barrel guide rod assembly included
• Thread protector included to protect the muzzle during storage and transport
• Made in the USA

Specifications

Frequently Asked Questions

Will this threaded barrel work with my Ruger RXM?

Yes, this kit is designed for RXM pistols originally equipped with a 4-inch non-threaded barrel. Installation requires no gunsmithing—it's a straightforward swap.

What 1/2x28 devices can I attach to this barrel?

The barrel accepts any 1/2x28 Class 2A muzzle device, including suppressors, muzzle brakes, and flash hiders. This is the standard 9mm host pitch.

Can I legally own a threaded barrel in my state?

Threaded barrels face legal restrictions in California, Connecticut, New York, Washington, Washington D.C., and Chicago, Illinois. Check your state and local laws before ordering. Ruger cannot ship to the restricted jurisdictions listed above.

What's included in the kit?

The kit includes the 4.5-inch threaded barrel, a threaded barrel guide rod assembly, and a thread protector for storage.