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$ 27.95
Premium AR-15 Aluminum Dust Cover in Black, CNC-machined from 6061-T6 billet aluminum with a Type III hard-coat anodized finish. Stronger and tighter sealing than standard stamped steel covers; prevents dust and debris from entering the receiver. Drop-in fit for all standard AR-15 / M4 uppers; uses factory pin and spring. Custom billet look for duty and custom builds.
In stock – ready to ship
In stock – ready to ship
The AR-15 Aluminum Dust Cover in Black is the ultimate upgrade over the standard flimsy stamped steel ejection port cover. Factory steel dust covers bend, rattle, rust, and fail to seal properly, allowing dust, dirt, and debris to enter your upper receiver and cause malfunctions. This premium dust cover is CNC-machined from solid 6061-T6 billet aluminum and finished in Type III hard-coat anodized matte black, delivering unmatched strength, a precision fit, and a custom high-end look that plastic and stamped covers simply cannot match.
Unlike standard covers that warp and lose tension, the billet aluminum construction maintains its shape under extreme heat and hard use. It provides a tight, positive seal against your upper receiver to keep your bolt carrier group clean and your rifle running reliably in harsh environments. Whether you are building a new rifle, upgrading a duty rifle, or replacing a lost or damaged cover, this aluminum dust cover is a one-time upgrade that will last the life of your rifle.
Built for shooters who demand more than mil-spec.
1. 6061-T6 Billet Aluminum – Stronger Than Stamped Steel: Machined from a solid block of aerospace-grade 6061-T6 aluminum billet, not cheap cast or stamped sheet metal. This makes it significantly stronger, more rigid, and more resistant to dents and deformation than the standard cover. It will not bend when snagging on gear; it will not rattle loose, and it will maintain perfect alignment with your ejection port. The Type III hard-coat anodized finish provides excellent scratch, wear, and corrosion resistance and perfectly matches standard black upper receivers, M-LOK handguards, and mil-spec components. The precision-machined hinge bore ensures smooth, bind-free operation with your existing dust cover rod and C-clip.
2. Precision Fit and Positive Seal: Each cover is CNC-machined to exact mil-spec dimensions for a drop-in fit with any standard AR-15 upper receiver. The flat billet profile with beveled edges provides a tighter seal against dirt and carbon fouling while still snapping open reliably from bolt carrier pressure during firing. The cover includes a high-tension stainless steel spring for positive closure. It stays closed when you need it closed, and opens instantly when you need to fire. No fitting, filing, or gunsmithing required — uses your existing ejection port cover pin, spring, and retaining clip.
3. Clean Custom Look and Universal Compatibility: The solid aluminum design instantly elevates the look of any AR-15 from basic to custom. The smooth matte black surface is perfect as-is for a stealth build or serves as an ideal canvas for custom laser engraving (flag, logo, text). Compatible with all standard AR-15, M4, M16, AR-9, and .223 / 5.56 / .300 Blackout upper receivers — both forged and billet uppers. Works with direct impingement and piston systems. Perfect for duty, competition, hunting, and range builds where reliability and appearance matter.
Don’t let a $5 stamped cover be the weak point on your rifle. The AR-15 Aluminum Dust Cover – Black is a small investment that improves reliability, protects your internals, and gives your rifle a premium, custom-shop finish. Keep dirt out and keep your rifle running.
SPECIFICATIONS
Material: 6061-T6 Billet Aluminum. Finish: Type III Hard-Coat Anodized Matte Black. Type: Ejection Port / Dust Cover. Compatibility: AR-15, M4, M16, AR-9 standard uppers. Installation: Drop-in; uses factory rod, spring, and C-clip. Weight: Approx. 0.4 oz.
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