For Howard Leight Impact Sport / Pro and clone headsets from Awesafe, GLORYFIRE, ProHear, and others:

For Walker's Game Ear Razor and similar headsets:

For Peltor ComTac, Sport Tactical, Rangeguard, and similar headsets:

For Sordin, SWATCOM, Invisio, Safariland/TCI, and similar headsets:

 

For Peltor Optime headsets: