SilencerCo AC2605 3-Lug Muzzle Device | .578×28

The SilencerCo AC2605 3-Lug Muzzle Device provides a threaded adapter that accepts 3-lug quick-detach suppressors for compatible .45 ACP firearms. It uses a .578×28 thread pitch and is finished in black to match typical pistol slide and barrel finishes. This adapter is intended for use where fast attach/detach of a suppressor is desired, such as range training and competition shooting. Installation requires a compatible 3-lug mount and correct threading on the host barrel.

Product Specifications

• Manufacturer is SilencerCo.
• Model and part number is AC2605 (3-Lug Muzzle Device).
• Thread pattern is .578×28.
• Intended caliber is .45 ACP.
• Finish is Black.
• This component requires a 3-lug mount to attach a suppressor.
• Compatibility is listed as SilencerCo Low Profile 3-Lug Mount and SilencerCo Original 3-Lug Mount and other 45-sized 3-lug mounts; it may not fit non-standard 45 3-lug mounts.
• Additional features include 3-Lug Male Adapter and fitment for .45 ACP firearms.
• Can be disassembled: No.
• Listed weight is 0.1 (unit not provided in source data).
• NFA thread pattern is .578×28.
• UPC is 816413025185.

Compact and purpose-built, the AC2605 is a practical choice for shooters who run suppressed .45 ACP pistols and need a reliable 3-lug attachment point. It keeps a low profile while allowing fast suppressor changes and aligns with SilencerCo’s 3-lug mounting standards for a straightforward integration into range or competition setups.