Can I Use a Solvent Trap As a Suppressor in Washington State?
This video from Washington Gun Law, featuring William Kirk, addresses the legality of using "solvent traps" as suppressors in Washington State. Kirk clarifies that converting a solvent trap into a suppressor without adhering to the National Firearms Act (NFA) regulations, specifically by filing an ATF Form 1, is unlawful. The video emphasizes that this practice circumvents federal law and is therefore not recommended, drawing on both federal statutes and Washington State law (RCW 9.41.250). This is the second part of a two-part series on suppressors in Washington.












