Airsoft Pro Suppressor adapter for Well MB4401 - older model with M18 thread.

Airsoft Pro Suppressor adapter for Well MB4401 - older model with M18 thread. 

Suppressor adapter for airsoft rifles. It is simply screwed into the outer barrel cap thread.  On the smaller thread, you can screw any suppressors or flash hiders with a standard 14mm left-hand (CCW) thread. A rubber ring is inserted inside the adapter. It improves the extended barrel axis lead. If you have longer inner barrel, it fix it exactly in the center of the adapter and reduce the vibrations. The adapter is also equipped with a thread cover that prevents damage or thread dirt.