This Rival Arms 9mm Conversion Barrel lets Glock 23 owners run 9mm ammunition through their factory .40 S&W pistol with a simple barrel swap, built by Rival Arms (brand part no. RA20G512A). Machined from stainless steel, precision polished, and coated for wear resistance, it’s built to match-grade tolerances for accuracy that exceeds the factory original. The muzzle is threaded at 1/2-28, opening up compatibility with aftermarket suppressors and compensators. It’s a cost-effective way to add a second caliber option to a Glock 23 without buying a second pistol.

Key Specifications

• A 9mm conversion barrel, allowing a Glock 23 (factory .40 S&W) to run 9mm ammunition with a barrel swap.
• Machined from stainless steel for corrosion resistance and long service life.
• Precision polished for a smooth bore finish.
• Treated with a wear-resistant protective coating to stand up to repeated firing.
• Marketed as a match-grade barrel for accuracy beyond the factory original.
• Threaded at 1/2-28 for compatibility with aftermarket suppressors and compensators.
• Finished in black to match the factory slide and frame.

Frequently Asked Questions

What does ‘conversion’ mean for this barrel? It lets a Glock 23 (factory chambered in .40 S&W) fire 9mm ammunition by swapping in this barrel.

Is the muzzle threaded? Yes, at 1/2-28, compatible with aftermarket suppressors and compensators.

What is the barrel made from? Stainless steel, precision polished and coated for wear resistance.

Buy the Rival Arms 9mm Conversion Barrel

Convert your Glock 23 to 9mm with this Rival Arms threaded conversion barrel. It ships fast from our Lubbock, Texas gun shop, and our Glock barrels selection has more Glock barrels for your build.