PH+ CNC Aluminum Hop Up Chamber Set for Marui MWS Airsoft GBB Rifle

PH+ CNC Aluminum Hop Up Chamber Set for Marui MWS Airsoft GBB Rifle CNC Aluminum Construction (Lightweight) Design For Upgrade The Original Parts More Durable With the double O-ring design is more Stable Secures Hop Tensioner Upgrade ballistic performance! Instead of being limited to a fixed number of adjustment stage, suitable for more range of BB weight (0.2 /0.25 /0.28 /0.3 /0.36 /0.4g BBs) Suitable For Tokyo Marui MWS M4 Series Gas Blow Back GBB Rifle Airsoft Guns