AR-10 / LR-308 Ejection Port Dust Cover Assembly (Gen 3) (Anodized Blue)

Description

This Gen 3 Ejection Port Dust Cover Assembly is engineered for .308 Cal AR-10 and LR-308 platforms. Constructed from T6 6061 Aluminum, the unit features a durable Anodized Blue finish. The assembly is designed to replace worn or damaged Dust Cover, ensuring reliable ejection port protection during operation.

The package includes the dust cover plate, retention rod, and spring. A key technical feature is the Adjustable Set Screw, which allows the builder to precisely align the cover for smooth opening and closing on the receiver. This adjustability is critical for ensuring proper fitment, particularly on Billet Uppers where tolerances may vary from standard receivers.

Weighing in at just 0.5 oz, this component adds negligible mass to the upper receiver, contributing to an overall Ultra Lightweight build. The Anodized Blue finish provides corrosion resistance while protecting the T6 6061 Aluminum substrate. Manufactured in the USA, this assembly meets the standards expected by experienced builders looking for high-quality, domestically produced replacement parts.

Installation requires standard armorer tools. Ensure the receiver is clean and free of debris before installing the new rod and spring. The adjustable set screw should be tightened after aligning the cover to prevent unwanted movement while allowing the necessary clearance for the cover to flip open and shut freely. This part is strictly for AR-10/LR-308 platforms and is not compatible with AR-15 receivers.