Strike Industries ARSUDC223 Stamped Dust Cover AR-15 Black Steel 3.35" The Strike Industries Stamped Dust Cover For AR-15 Is a Perfect Fusion Of Classic Mil-Spec Design And contemporary Si Style. Crafted From Durable Stamped Steel For Superior Protection. With a Quick, Tool-Free Installation And Easy disassembly It Can effortlessly Be installed Or remove In 5 To 10 seconds. Included Is a Spring-Loaded Internal detent For Reliable Dust Cover Closure When Needed. Arriving Pre-Assembled, it's Ready For a New Build Or as a Seamless Replacement. Model: Stamped Material: Steel