Silencerco AC2291 Threaded Barrel for Beretta 92FS/M9 - 1/2x28 Thread Pitch

The SilencerCo AC2291 threaded barrel for Beretta 92FS/M9 converts your service-grade 9mm into a suppressor-ready platform without requiring special adapters or oversized components. Built from 416R stainless steel and finished in non-reflective black nitride, this drop-in barrel threads at 1/2x28—the most common pitch for 9mm pistol suppressors—so you can run proven off-the-shelf cans from a wide range of manufacturers. Whether you're building a hearing-safe training rig, a backyard plinker, or a duty pistol that doubles at the range, this is the straightforward upgrade that gets you there.

Installation is simple: the barrel fits as a direct replacement without modifications to your receiver or slide. Because it uses standard 1/2x28 threading, you won't need an XL piston or proprietary suppressor mount—a conventional full-size piston will cycle reliably. Each barrel arrives with a thread protector in the box, so your threads stay undamaged during the inevitable unsuppressed shooting sessions.

For Beretta 92FS and M9 owners who want suppressor compatibility without the gunsmithing bill or the guesswork, the SilencerCo AC2291 removes the friction from the equation. It's accurate, durable, and threads that work with real-world suppressors you can actually find and afford.

Key Features

• 1/2x28 thread pitch compatible with standard 9mm pistol suppressors
• Drop-in replacement—no gunsmithing or modification required
• 416R stainless steel construction with durable black nitride finish
• Works with conventional full-size pistons; no XL adapter needed
• Includes thread protector to prevent damage when shooting unsuppressed

Specifications

Frequently Asked Questions

Will this barrel work with my Beretta 92FS or M9?

Yes. The SilencerCo AC2291 is designed as a direct drop-in replacement for the Beretta 92F, 92FS, and M9. No gunsmithing is required.

What suppressors will thread onto this barrel?

Any 9mm suppressor with 1/2x28 female threads will fit. This is the standard pitch for pistol-caliber cans, so you have access to a wide range of options from multiple manufacturers.

Do I need a special piston or adapter?

No. The barrel uses standard 1/2x28 threading and works with conventional full-size pistons. You don't need an XL piston or proprietary adapter.

What comes in the box?

The barrel arrives with a thread protector to guard the threads during unsuppressed shooting.