A Plus Airsoft Technical Knockout System Upgrade Kit for Tokyo Marui M4A1 MWS

Are you looking for a power and gas efficient upgrade for your Tokyo Marui M4 GBB rifle? Then this is something that you should definitely have! A Plus Airsoft's Technical knockout System upgarde kit for the Tokyo Marui M4 increases the overall gas flow rate but will only release a certain amount each time making the fps relatively similar with each shot till the magazine runs out! In turn, it increases the muzzle velocity and improves the shooting experience!