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Plan your Class 3 dealer
Suppressors go through a Class 3 (SOT) dealer. The federal tax is $0, and ATF stopped enforcing the Form 4 wait on October 9, 2026, but some states still require federal registration. You still pay the dealer's transfer fee.
Sig Sauer
Overview
The SIG SAUER SLX Compact 5.56mm QD Suppressor is designed specifically for 5.56 NATO caliber firearms, providing effective noise reduction for a more discreet shooting experience. Its Quick Detach mount type allows for rapid installation and removal, making it a convenient choice for builders who appreciate versatility in their setups. This suppressor is often found in builds focused on tactical applications or those seeking to enhance their precision shooting capabilities.
Specifications
SIG SAUER SLX Compact 5.56mm QD Suppressor (NG556C-QD)
Price and stock
Today all 3 retailers we track have the SIG SAUER SLX Compact 5.56mm QD Suppressor (NG556C-QD) in stock. Buying today, the lowest price is $1,399.99 at Brownells.
Prices checked · refreshed daily across 37 retailers
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