Advanced Armament Co. is officially back—and they’re not tiptoeing into the market. They’re kicking the door open with the return of the legendary M4-2000, fully redesigned using modern 3D printing and low back pressure technology. The result is a suppressor that keeps the classic M4-2000 legacy alive while delivering the performance today’s shooters actually want.
A Classic, Re-Engineered for Today
The original M4-2000 earned its reputation the hard way. The new version keeps that same proven concept but updates the internals with 3D-printed Inconel, eliminating weld seams and unlocking stronger, lighter, and more consistent construction.
Built for Low Back Pressure
Modern suppressor shooters care about gas—and AAC listened. The new M4-2000 is designed as a low back pressure system, diverting gas away from the shooter for a cleaner, smoother shooting experience with less blowback.
New Mount System, Better Reliability
The old latch system is gone. In its place is a modern taper mount interface that’s secure, repeatable, and drama-free. It’s also HUB compatible, so it plays nicely with today’s most popular mounting ecosystems.
Integrated Flash Hider & Hard-Use Ready
Thanks to 3D printing, AAC was able to integrate a flash hider directly into the front of the suppressor, improving performance without adding complexity. It’s built to handle hard use, high round counts, and aggressive firing schedules.
Specs at a Glance
- Caliber: 5.56 (bored to support 6mm)
- Construction: 3D Printed Inconel
- Finish: Black DLC
- Mount: HUB compatible, ships with new hub mount and 1x6 LH flash hider
- Length: Just over 6"
- Diameter: 1.63"
- Weight: 16.7 oz (without mount)
- The new AAC M42000 is expected to be available this January.
If you’ve been waiting for AAC’s return—or for a modern, low back pressure 5.56 suppressor built for real-world use—the new M4-2000 is one to watch closely.