Simple Arcturus AK-12 Airsoft Suppressor

I printed it in PET-G @0.3mm, but best would be TPU because of layer orientation and pressure created by rubber O-ring. It is best to be printed vertically, since it's cylinder. Original part however has a rubber O-ring there which creates a little bit of upwards (toward way of shooting) pressure. This pressure can break PET-G part (unless you remove the O-ring like I did). However, TPU should handle this safely