Tokyo Marui PX4 Original Parts (# PX4-7/ PX4-8)

Tokyo Marui PX4 Original Parts (# PX4-7/ PX4-8) Design For Replace the Original Rocket Valve & Spring (# PX4-7/ PX4-8) Suitable For Tokyo MArui PX4 Series Airsoft Gas Blow Back GBB Pistol