Daniel Defense SG-556 SoundGuard Suppressor 1/2-28 .223/5.56

Description

The Daniel Defense SG-556 SoundGuard is a direct-thread suppressor engineered for .223 REM/5.56 NATO firearms. It uses KGM-driven gas-flow dynamics and a patent-pending baffle stack to reduce impulse noise and minimize point-of-impact shift. The unit attaches via a 1/2-28 thread pitch and ships with an adapter that interfaces with the HUB 1.375-24 UNS mounting standard for rapid attachment and removal.

Key Specifications

• The suppressor is compatible with .223 REM/5.56 NATO caliber firearms.
• The thread pitch is 1/2×28 TPI.
• The mounting method is Direct Thread.
• The overall length measures 7 inches.
• The outside diameter measures 1.75 inches.
• The material construction is Stainless Steel.
• The finish is Black high-temp Cerakote (matte).
• The product type is Suppressor (ATF type: Silencer).
• Country of origin is US.

The SG-556 SoundGuard offers a compact, direct-thread option for shooters who value a low-profile suppressor that blends proven gas-flow engineering with durable construction. It’s a straightforward, no-nonsense choice for range use and precision-minded applications—yinz get a solid tool that focuses on reducing noise and flash while keeping POI shift to a minimum.

Just a heads up, n’at: some of the product descriptions on our site are created or assisted by AI. We do our best to make sure everything’s accurate, but every now and then the info might be a little off—kinda like tryin’ to find parking on the South Side on a Friday night.

Details like specs, features, pricing, or availability might not always be perfect, so yinz should double-check anything important before buyin’.

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This is a regulated item and must be sent to an FFL but can be shipped direct to door for PA residents ONLY.

See our Policies for more information.

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