SilencerCo 3-Lug Muzzle Device, 9/16×24

The SilencerCo 3-Lug Muzzle Device (SilencerCo part no. AC2606) threads onto a 9/16×24 barrel and gives a host rifle a standardized 3-lug interface for quick-attach suppressor mounting. It’s a Title I accessory, not a regulated firearm part, and lets a shooter mount and dismount a compatible 3-lug suppressor host in seconds without tools. The device is a common upgrade for AR-platform rifles running a 3-lug suppressor system, replacing a standard muzzle device with one built specifically for that mounting interface. Shooters running suppressor-capable uppers pick this up to get a fast, repeatable mount without relying on a direct-thread interface.

Key Specifications

• Threads onto a 9/16×24 tpi barrel for direct installation.
• Provides a 3-lug mounting interface for quick-attach compatible suppressor hosts.
• Weighs in at a lightweight 0.15 lb shipping weight, adding minimal muzzle weight.

Frequently Asked Questions

What thread pitch does this muzzle device use? It’s cut for a 9/16×24 tpi barrel.

Is this device itself a regulated part? No, it’s a Title I muzzle device that provides a 3-lug mounting interface, not a suppressor itself.

Buy the SilencerCo 3-Lug Muzzle Device, 9/16×24

Get a fast, tool-free suppressor mounting interface on a compatible rifle with this SilencerCo 3-lug device. Browse our full AR muzzle devices selection and order from our Lubbock, Texas gun shop for fast, direct shipping.