ASG barrel extension tube

This innovation barrel extension tube may appear as a sound suppressor, but due to the spring mounted inner-barrel, it actually extends the inner-barrel, resulting in increased BB velocity.
This mock sound suppressor will make a gas powered Airsoft gun shoot faster, further and harder, while adding to it’s appearance. 
Size 119mm x 22mm 
Color: Black. 
   
Fits a variety of Airsoft guns like:
CZ 75D
CZ 75 P-07
BERSA Thunder 9 pro
BERSA BP9CC
STI