A complete front-end kit for M4/M15/M16 style airsoft guns. The PWS Diablo CQB adjustable amplifier consists of a housing, a cone-shaped component that rests inside the housing, and a threaded front cap. One of the most interesting aspects of this product is the "sound adjusting" feature found in the housing. It can be adjusted by tuning the internal cones in relation to each other. This is meant to amplify the sound from an AEG, and change it to a more realistic noise. 

Features: 

• Front-end kit for M4/M15/M16 style airsoft guns
• 21mm rail system
• 7.5'' outer barrel
• Sound adjusting feature