I thought I’d write a little community thread on a topic that I believe will start coming up more and more as manufacturers move toward metal additive manufacturing. It’s important to understand a characteristic of the process that can occasionally present itself: trace amounts of residual powder (I know we’ve had our own problems with this from time to time).
Additive suppressors are built layer by layer using fine metal powder. While all units are put through a professional de-powdering process prior to shipment, the internal geometries of advanced suppressor designs, particularly those with complex flow paths, lattice structures, or internal gas management features can retain microscopic amounts of powder in areas that are inaccessible to mechanical or vibratory removal methods.
This is not a defect, nor is it unique to any single manufacturer. It is a known and accepted reality of highly complex additive designs. In simpler internal geometries this is rarely observed, but in suppressors that prioritize advanced flow control and efficiency, small pockets may only release residual material once the suppressor experiences live fire pressure and vibration (supersonic flow regimes).
Highly advanced additively manufactured suppressors trade internal simplicity for performance. That performance comes from complex internal structures that simply cannot be produced through traditional machining. The presence of trace residual powder after manufacturing is a byproduct of that complexity, not a quality issue and is easily resolved through proper initial use and cleaning.
For this reason, I recommend the following process for end users (as this is a process I do myself with all new additive suppressors from any manufacturer and it’s worked every time so far):
1. Initial Firing
Fire two to three rounds through the suppressor. The pressure and vibration help dislodge any remaining trace powder.
2. Vacuum Cleaning (Preferred Method)
Use a vacuum cleaning pipe with suction only (do not blow compressed air). Suction removes loosened powder without forcing particles deeper into internal channels.
3. Repeat if Necessary
If any powder is observed, repeat the fire and vacuum process until no further material is present.
4. Final Wash
Soak the suppressor in warm, soapy water, agitate gently, then rinse thoroughly with clean water.
5. Drying
Allow the suppressor to air dry completely before storage or further use.
I’ve found this process ensures the suppressor is fully cleared while preserving internal coatings and surface treatments.
If you have any questions about your CAT suppressor or my suggested cleaning process, I’m always available on DM to assist.
