Silverback Cylinder Head with Nozzle For MDRX AEG Airsoft Rifle

Silverback Cylinder Head with Nozzle For MDRX AEG Airsoft Rifle CNC Aluminum Airsoft Cylinder Head Including NBR piston damper, Stainless Steel Airsoft Nozzle with Airsoft Return Spring included FKM O-ring for excellent Air Seal Design For Upgrade the Original Internal Parts More Durable Suitable For Silverback MDRX Series Electric AEG Rifle Airsoft Gun