Ace1arms AC Style Ti-Rant Silencer / Barrel Extension for GBB/AEG Airsoft Gun The suppressor can attach to any pistol with thread outer barrels, GBB & AEG SMGs/Rifles with 14mm - / 14mm + /16mm + thread also available. What I can say, this silencer is a prefect model fit for all the airsoft guns in the market. And the AC Style silencer also has a popular function – Range Up. It helps your airsoft gun have a longer shooting range than the original one and also maintain the same precision.