AR-15 Billet Aluminum Dust Cover Black – Fortis Manufacturing
Fortis Manufacturing, Inc.The Fortis Manufacturing AR-15 Billet Aluminum Dust Cover delivers a premium, American-made upgrade over standard polymer ejection port covers, machined from a single solid piece of aircraft-grade 6061-T6 aluminum for lasting durability and a refined look.
- Machined from aircraft-grade 6061-T6 aluminum billet for maximum strength
- Type III hardcoat anodize finish resists corrosion, wear, and harsh conditions
- Fits all mil-spec AR-15 uppers chambered in .223/5.56 NATO
- Ultralight at just 0.4 oz — no added weight to your build
- Complete installation kit included: spring and C-clip supplied
- Proudly designed and manufactured in the USA by Fortis Manufacturing
Who This Is For
This dust cover is the ideal upgrade for AR-15 owners who want to replace a worn or flimsy factory polymer cover with a precision-machined aluminum component. Whether you're building a duty rifle, competition gun, or a premium range build, the Fortis Billet Dust Cover adds a touch of craftsmanship and long-term reliability that mil-spec plastic simply can't match.
Specifications
| Brand | Fortis Manufacturing, Inc. |
|---|---|
| Material | Aircraft-Grade 6061-T6 Aluminum |
| Finish | Type III Hardcoat Anodize – Black |
| Weight | 0.4 oz |
| Length | 3.13" |
| Width | 0.885" |
| Compatibility | Mil-Spec AR-15 Uppers (.223 / 5.56 NATO) |
| Includes | Dust Cover, Spring, C-Clip |
| Country of Origin | Made in the USA |
Frequently Asked Questions
Will this dust cover fit my AR-15 upper receiver?
Yes. The Fortis Billet Aluminum Dust Cover is designed to fit all mil-spec AR-15 upper receivers chambered in .223 Remington or 5.56 NATO. It installs using the included spring and C-clip and requires no permanent modification or special tools — it's a straightforward drop-in replacement for your existing ejection port cover.
Why choose an aluminum dust cover over a standard polymer one?
Standard factory dust covers are typically made from stamped steel or polymer, which can flex, crack, or wear over time — especially with heavy use. The Fortis billet aluminum cover is machined from a single piece of 6061-T6 aluminum and finished with a Type III hardcoat anodize, making it significantly more resistant to impact, abrasion, and environmental wear. It also adds a premium aesthetic that matches high-end billet upper and lower receiver sets.
Is this compatible with AR-10 or .308 builds?
No. This dust cover is sized specifically for mil-spec AR-15 uppers chambered in .223/5.56. AR-10 and .308-platform rifles use a larger ejection port and require a correspondingly larger dust cover. Be sure to verify your receiver's platform before purchasing.