The SilencerCo Threaded Barrel for the Smith & Wesson M&P (brand part number AC2023) is a direct-fit 9mm replacement barrel built for shooters adding a pistol suppressor to their M&P. Every pistol suppressor needs a threaded host barrel, and SilencerCo machines this one from 416R stainless steel and finishes it in black nitride to hold up under harsh use. The barrel measures 4.9 inches and is cut 1/2×28 to accept standard 9mm suppressor mounts. A piston is required separately to complete a suppressor setup.

Key Specifications

• Direct-fit replacement barrel for the Smith & Wesson M&P.
• Chambered in 9mm Luger.
• Threaded 1/2×28 for standard 9mm suppressor mounts.
• Measures 4.9 inches.
• Rifled with a 1:10-inch right-hand twist rate.
• Machined from 416R stainless steel for corrosion resistance.
• Finished in black nitride for a durable, low-glare coating.
• Requires a separate piston to complete a suppressor host setup.

Frequently Asked Questions

Does it come with a piston? No, a piston is sold separately.

What thread pattern does it use? 1/2×28, the standard for 9mm pistol suppressors.

Buy the SilencerCo 9mm Threaded Barrel for S&W M&P

Get your M&P ready to run suppressed with a factory-direct threaded barrel. Order it from our SilencerCo lineup, part of our handgun barrels selection, at our Lubbock, Texas gun shop for fast, direct shipping.