We've all seen the videos of oil filters used as makeshift suppressors, now you can be a part of that action! This adapter allows you do just that. Designed to fit a standard 1/2" x 28 TPI barrel. Adapts to common 3/4" x 16 TPI Oil filters. More thread variants coming soon for all of your projects! LBRY Tags: 2a; rifle; pistol; supressor; guncad