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Aero Precision
Overview
The Aero Precision AR-15 Ejection Port Cover Assembly is a functional component designed to keep debris and contaminants out of the receiver when the rifle is not in use. Made from durable 6061-T6 aluminum and finished in black, this dust cover adds both reliability and a sleek look to your build. It is commonly found in mid-length gas system builds chambered in 5.56 NATO, ensuring that your firearm remains clean and operational in various conditions.
Aero Precision AR-15 Ejection Port Cover Assembly was the third most added dust cover on GunPartPicker in August 2026, behind the Strike Industries AR-15 Ultimate Dust Cover - Texas Edition V1, with about 7% of all dust covers added to builds. That's its 2nd straight month at #3. Builds with this dust cover are mostly chambered in 5.56 NATO (72%, then .223 Wylde 19%), split between mid-length (46%) and carbine-length (37%) gas systems, and mostly AR-15 (89%, then AR-10 11%).
It was hard to find in August 2026, in stock on only 11 of the 19 days we checked, and today 4 of the 5 retailers we track have it in stock. Prices barely moved in August 2026, holding around $13.99, so there haven't been real sales lately. Buying today, the lowest price is $13.26 at KY Gun Company, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every dust cover by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Dust Cover Guide →The part most often added in each category by the 223 builds that include this one
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Aero Precision Ar-15 Ejection Port Cover Assembly
| Build | Parts | Total |
|---|---|---|
 | 22 | $873.14 |
 | 12 | $641.19 |
 | 27 | $1978.98 |
 | 12 | $913.14 |
 | 12 | $1744.39 |
 | 22 | $1362.41 |
 | 12 | $933.02 |
 | 26 | $3300.38 |
 | 15 | $1121.77 |
 | 19 | $2465.55 |
 | 26 | $3159.10 |
 | 21 | $1274.23 |
5 global ratings
Top reviews
Aero sells these as a full assembly with rod, spring, and c-clip preinstalled which saves the worst part of changing a dust cover. Black anodizing matches my Aero upper. Spring pop is positive when the BCG cycles. Solid budget option.
assembly comes with the door, spring, and pin. snaps shut with positive tension when you charge the rifle. roll pin install is the only fiddly part, took about 2 min with a punch set
Aeros ejection port cover comes with the rod, spring, and c clip preinstalled which is the only way to buy these. Spring pops the door open positively when the bolt cycles. Black anodize matches Aero uppers exactly. Easy 5 minute install with the right punch.
Aero Precision ejection port cover assembly is well made with the rod, spring, and c-clip preinstalled. Saves the worst install task. Spring snaps the door open positively on bolt cycling. Black anodize matches Aero uppers exactly.
works as expected. price is a little steep for what it is
