King Arms Metal Lower Receiver For Thompson/ M1A1 SMG Airsoft Guns (Gold)

King Arms Metal Lower Receiver For Thompson/ M1A1 SMG Airsoft Guns (Gold) CNC Aluminum Construction Airsoft Receiver Gold Plate Lower Receiver Design For Upgrade the Original Parts More Durable Suitable For King Arms M1A1/ Thompson Electric Gun AEG SMG Rifle Airsoft Gun