Airsoft suppressor/silencer

Legal Disclaimer: This device is intended for testing on AIRSOFT replicas only and is NOT to be used on real firearms or outside of a testing environment. Please know your local laws/bylaws before using this type of device. Again, this device WILL NOT WORK on a real firearm and may cause serious injury or damage.


This was an experiment to see if I could design a sound suppression device for my airsoft replica. The goal being to print a single piece unit that does not rely on foam for other sound dampening materials. Testing the full length version with an HPA Kythera and 280mm inner, I was able to achieve ~4dbA reduction at ~3cm from the nozzle. Overall, I'm very happy with the results and pleasantly surprised at the amount of sound reduction considering I've never tried something like this before!

There are versions of varying lengths, all designed to fit on a typical AEG outer barrel of approximately 17.65mm diameter with the typical 14mm ccw thread. The outer diameter was si