The White Label Armory WLA-PAC-2002-10 ejection port cover provides essential protection for your AR10/AR15 rifle's ejection port with a durable black oxide finish.White Label Armory Ejection Port Cover (Model: WLA-PAC-2002-10)Compatible with AR10 and AR15 platformsBlack oxide finish for corrosion resistance10-pack quantity for multiple builds or replacementsPrevents debris and contaminants from entering ejection portEssential for maintaining your AR platform rifle during storage transport or when not in use. Perfect for armorers gunsmiths or AR enthusiasts maintaining multiple firearms.