GK Tactical Chamber Cover (Right) for GK Tactical/ Premium/ Stark Arms Model 17/ 18C (No. 40)

GK Tactical Chamber Cover (Right) for GK Tactical/ Premium/ Stark Arms Model 17/ 18C (No. 40) Metal Construction Airsoft Chamber Cover Design For Replace the Airsoft Original Parts Suitable For GK Tactical/ Premium/ Stark Arms Model 17/ 18C