BJ TAC Steel Mil-Spec Dust Cover For M4 GBB Airsoft Rifle (QPQ Coating)

BJ TAC Steel Mil-Spec Dust Cover For M4 GBB Airsoft Rifle (QPQ Coating) Steel Construction Airsoft Dust Cover Design For Replace the Original External Parts More Durable Suitable For M4 Series Gas Blow Back GBB Airsoft Rifle