Sig Sauer SLX556C-QD | 5.56 NATO Compact Suppressor

The Sig Sauer SLX556C-QD is a compact, purpose-built suppressor intended for use with supersonic 5.56 NATO ammunition. It employs a Clutch-LOK QD mounting system with a tactile locking ring and infinite radial locking positions for repeatable attachment. A monolithic Inconel core and flash-reducing end cap are incorporated to prioritize durability and flash reduction while the internal multi-flow path helps reduce the flow of toxic fumes back through the ejection port.

Product Specifications

• The caliber is 5.56 NATO.
• The material is constructed from Inconel.
• The external diameter is 1.67 in (42 mm).
• The overall length is 5.2 in (133 mm).
• The attachment type is Clutch-Lok QD.
• The finish is Black Cerakote.
• The suppressor uses a monolithic core for strength and durability.
• The design includes a flash-reducing end cap.
• The internal configuration features a multi-flow exhaust path to limit fumes returning to the shooter.
• This model is designed for use with supersonic ammunition.
• The manufacturer part number is SLX556C-QD.
• The UPC is 798681629305.

This compact suppressor balances low profile handling with a focus on durability and reduced visual signature. Its Clutch-LOK QD system provides a fast, repeatable mounting option while the Inconel construction and monolithic core support extended service life. For shooters focused on precision, reduced flash, and lower exposure to propellant gases during extended range sessions, the SLX556C-QD offers a concise, purpose-driven option.

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