Oil Filter Suppressor Adapter a Hoot
(GunReports.com) The Econo-Can is a patent-pending legal and registered silencer by American Specialty Ammo. It actually is an adapter that uses a removable expansion chamber aka a car oil filter to suppress the firearm.
The video below shows that this device is as quiet as any 22 LR silencer we have tested. But its not a toy or novelty. Its a registered silencer and must be treated as such. The adapter is threaded 1/2-28. This is a NFA item and all NFA rules and regulations apply. Price: $55.