Have been reported to produce lower pitches and overall tones when used to suppress either subsonic or slower supersonic cartridges. The builders’ theory is that the cone’s stepped design works to induce greater turbulence in the gas flow. Solvent trap cups are usually made of durable materials such as aluminum https://solvent-traps42085.blgwiki.com/933600/the_greatest_guide_to_solvent_trap_cups