For those shooters who were interested in the convenience and easy installation of the Ultimate Dust Cover from Strike Industries, but couldn't bring themselves to trust a polymer component in sugh a high stress environment as the ejection port, want no more! The Billet Ultimate Dust Cover maintains the same great features as the original UDC, including enhanced environmental sealing, adjustable tension, and quick installation or removal now with heavy duty billet aluminum construction. Available in a variety of anodized finishes and with an included noise-reduction padding, the Billet Ultimate Dust Cover is a fantastic upgrade for your build.Features:Spring-loaded internal detent rodBillet aluminum constructionResistant to corrosion, rust and fadingTrue Seal internal lipAdjustable detent set screwOD Green anodized finishNoise reduction padsStrike Industries products are designed by shooting experts for the shooting sportsman. They have anything from AR-15 parts and accessories to Glock components so you can completely customize your set up no matter what you run. Their complete line of innovative products come in a huge variety of colors and finishes so you can not only customize function, but personalize your look. You can't go wrong with Strike Industries.