AAC Halcyon

AAC Halcyon Suppressor – Modular, Durable, and Whisper-Quiet

AAC Halcyon: Modern Sound Suppression for Demanding Shooters

The AAC Halcyon redefines rimfire suppressors by offering elite performance in a lightweight, modular design. Whether you’re hunting, plinking, or training, this suppressor delivers reliable sound reduction and flexibility across calibers. Designed by Advanced Armament Company, the Halcyon balances innovation with proven materials for long-lasting performance.

Two Configurations, One Suppressor

Unlike many suppressors, the AAC Halcyon adapts to your needs. You can run it in compact mode at just 3.41 inches and 4.5 ounces, perfect for lighter setups. Or, if you prefer maximum suppression, extend it to 5.8 inches and 6.4 ounces. Thanks to its tool-free modular design, switching between modes is simple—even in the field.

AAC Halcyon Built Tough with Premium Materials

Durability is key, and the Halcyon suppressor delivers. Constructed from 17-4 PH stainless steel and titanium, it resists heat and wear while staying lightweight. In addition, the sleek black PVD finish offers corrosion resistance, ensuring long-term reliability. Therefore, you’ll spend more time shooting and less time maintaining.

Wide Caliber Compatibility

The AAC. Halcyon isn’t just for .22 LR. It’s also rated for .17 HMR, .22 WMR, and 5.7×28mm, and even full-auto .22 LR. As a result, it’s one of the most versatile rimfire suppressors available today. No matter what rimfire firearm you choose, the Halcyon is ready.

Superior Sound Reduction Performance

Thanks to advanced internal baffle design, this suppressor reduces sound by up to 42 dB. In full-length mode on a Walther P-22, that means a shot as quiet as 114 dB. Furthermore, it maintains consistent suppression with every round, shot after shot.

What’s in the Box

• AAC Halcyon Suppressor

• Owner’s Manual

Technical Specs

• Weight: 6.4 oz (full), 4.5 oz (compact)

• Length: 5.8” (full), 3.41” (compact)

• Diameter: 1.12”

• Materials: 17-4 PH Stainless Steel & Titanium

• Finish: Black PVD

• Attachment: Direct Thread