AAC Halcyon Suppressor | Titanium | 1/2×28

The AAC Halcyon is a compact, modular suppressor engineered for rimfire use and rated for up to 5.7x28mm. Constructed with titanium components and indexed shielded K-baffles, the Halcyon converts between short and long configurations quickly and can be disassembled in the field without tools. It attaches via a 1/2×28 direct-thread interface common to many pistols and adapters.

Typical applications include precision rimfire training and small-game/varmint field use, as well as range practice where a lightweight, modular suppressor is preferred.

Product Specifications

• The manufacturer is Advanced Armament Corp (AAC).
• The model is Halcyon.
• The UPC is 850036491019.
• The suppressor is listed for calibers 17 HMR, .22 LR, .22 WMR, and 5.7x28mm.
• The NFA thread pattern is 1/2×28.
• The NFA attachment method is Direct Thread.
• The primary material is Titanium.
• The baffle configuration uses titanium shielded K-baffles.
• The finish is specified as PVD.
• The outside diameter is 1.12 inches.
• The overall length is listed as 3.41 inches (compact) to 5.8 inches (full).
• The design is described as modular and field-disassemblable without tools.
• The product is rated for full-auto .22 LR use and for use up to 5.7x28mm.
• The reported sound reduction is 42 dB.
• The reported S.P.L. value is 114 dB.

Lightweight titanium construction and a modular profile make the Halcyon an efficient choice for shooters who prioritize low weight and quick configuration changes. Its tool-free disassembly and indexed baffles simplify maintenance and cleaning after extended range sessions or field use.

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