SIG SAUER NG556-QD SLX 5.56 Suppressor — Inconel 7.4 in

The SIG SAUER NG556-QD SLX is a full-size suppressor engineered for use with 5.56 NATO/.223 Rem rifles. Built around SIG’s Next Gen SLX architecture, the NG556-QD uses a monolithic Inconel core and a Clutch-Lok quick-detach mounting system for repeatable attachment. The SLX internal multi-flow design reduces backflow of gases and is optimized for use with supersonic ammunition to reduce flash and lower toxic gas exposure at the ejection port.

Key Specifications

• The caliber is 5.56 NATO / .223 Rem.
• The overall length is 7.4 inches.
• The weight is 19.4 oz.
• The build material is Inconel.
• The outer diameter is 1.67 inches.
• The attachment method is Clutch-Lok quick-detach (QD).
• The NFA thread pattern is 1/2×28.
• The finish is Cerakote, black.
• The ATF model designation is NG556-QD.
• The design includes a monolithic core construction for strength and durability.

Engineered for serious range use and precision semi-auto carbines, the NG556-QD SLX balances durability, repeatable mounting, and reduced flash and low-tox performance. Its rugged Inconel construction and quick-detach Clutch-Lok system provide a reliable platform for shooters who value consistent alignment and serviceable build quality.

Related Videos: