JK Armaments Tone Technology produces a more solid, deeper tone thats more pleasing to the ear. While the JK 105 CCX 9MM can absolutely be run dry, it sounds best run wet with the addition of small amounts of petroleum jelly inside its baffles. JK Armament is very proud to bring the first practical, concealable 9mm pistol suppressor to the market with the JK 105 CCX 9MM. The 105 CCX is designed to live on your concealed carry gun and protect your hearing should you have to use it.