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

Description

Replace worn or missing components on your .308 Cal upper with this Gen 3 ejection port dust cover assembly. Engineered for Billet Uppers Only, this unit ensures reliable protection of the receiver’s internal mechanisms from debris and environmental contaminants during operation.

The assembly is constructed from T6 6061 Aluminum, providing a durable yet Ultra Lightweight profile that weighs only 0.5 oz. This material choice maintains structural integrity while minimizing added mass to the upper receiver. The Anodized Gold finish offers corrosion resistance and a distinct aesthetic, with the anodizing process enhancing the aluminum’s surface hardness.

Key features include the dust cover, a slender rod, and a coiled spring, all included in the package. The design incorporates an Adjustable Set Screw that allows for precise alignment of the cover’s opening and closing action against the receiver. This adjustability is critical for ensuring smooth operation and preventing binding, which is particularly important for custom or aftermarket billet uppers where tolerances may vary from factory specifications.

This component is manufactured in the USA, adhering to domestic quality standards. It is designed specifically for the LR-308 and AR-10 platforms, serving as a direct replacement for the standard ejection port dust cover. The Gen 3 design updates previous iterations to improve reliability and fitment. For builders assembling or repairing AR-10 / LR-308 rifles, this assembly provides the necessary mechanical function and protective coverage in a compact, lightweight package.