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AR-15 A1 EJECTION PORT COVER ASSEMBLY Reviews & Ratings

AR-15 A1 EJECTION PORT COVER ASSEMBLY

Our Brownells A1 Ejection Port Cover is an accurately detailed replica of the cover used on M16A1 and earlier rifles - basically the Vietnam Era guns. Unlike the standard A2 cover still in use today, the A1 has a smaller, rectangular finger pad with crisp 90 degree edges. On the inner side, an early-style hexagonal housing retains the catch detent and spring, rather than the simpler, easier to manufacture cylindrical housing of the A2 cover. Aside from these physical details, the Brownells A1 Ejection Port Cover operates and installs just like the covers on modern-day rifles. It's made of stamped steel (not plastic - of course!), with a classic matte dark gray Parkerized finish that's a good match to our Retro Rifle receivers.

Correct style for M16A1 & earlier rifles that should have a port cover
Steel with durable Parkerized finish
Correct-spec smaller, rectangular finger pad
NOTE: Pin, C-clips & spring NOT included

If you've gone to the effort of building up a nice early AR-15 / M16 Retro Rifle from Brownells parts, why cut corners on the details? The A1 Ejection Port Cover provides that finishing touch of historical accuracy.

See all of our AR15s and AR15 parts here.

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Reviews Summary

Customers praise the AR-15 A1 Ejection Port Cover Assembly for its quality and authenticity, perfect for retro builds. However, many express disappointment that it lacks necessary hardware, impacting convenience. While most find it visually appealing, some note finish imperfections and weight issues. Overall, it's seen as a solid choice for restoring vintage rifles.

What Reviewers Are Saying

Product Quality

80%

Reviewers consistently highlight the quality and craftsmanship of the ejection port cover. Many comment on its impressive fit and finish, with most feeling it accurately replicates the original aesthetic. However, a few note finish imperfections that compromise the overall appearance.

Missing Hardware

70%

A common theme is the frustration over the absence of essential hardware, such as the pin, spring, and e-clip, which are not included with the purchase. Many reviewers felt misled, wishing that the product came as a complete kit instead of requiring additional orders.

Authenticity

60%

Several customers value the authenticity of the ejection port cover for their retro builds. They appreciate that even slight discrepancies in color add to the historical accuracy of their vintage rifles, making them feel more genuine.

Value for Money

50%

Though some reviewers consider the product pricey, many agree that given the uniqueness and quality, it is a worthwhile investment. They emphasize that its performance and reliability justify the cost, often recommending it despite the expense.

Finish and Durability

40%

While the overall quality is praised, some reviewers express concerns regarding the finish, describing it as overly shiny or prone to wear. A few have suggested that applying a different finish could enhance durability and aesthetic. This observation indicates a possible area for improvement.

Customer Photos & Videos

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Perfect fit

I had an A2 door on my A1 clone and it looked a bit off, so I purchased the correct version and the quality of fit was spot on! Highly recommend this product for an replacement for your A1

by Clayton T. on May 14, 2026

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Retro Dust Cover

Very well made. Nice fit and finish,Looks just like the originals. Fast shipping and great price.

by LOWELL C. on May 20, 2024

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Perfecr for a retro build!

I'm current building an M16A1 rifle and want to keep it as close to authentic as possible. The only piece i needed to complete the upper was an ejection port cover. Of all the online businesses, Brownells was the only one that had them in stock. The reproduction is meticulous from form to function. Looks perfect on the retro build! My only complaint, and it's not really a complaint, the ejection was not offered as a kit. Each part needed to be purchased separately. It still gets a five star rating.

by Brian K. on May 04, 2024

Verified Purchase

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Retro Build

I am doing a retro USAF 604 build, needed a small pad ejection port cover. I see a lot of mention of colors not matching. Well in my 23 years in the Air Force, I don't remember any of the 604s having much if any matching colors on the parts. Just makes it look more authentic in my opinion. Installation was straight forward and easy enough, that's saying a lot as this is my first ever build. Pictures show it installed, ignore the A2 buttstock and pistol grip, just a mock up and test fitting.

It works well

These ejection port covers are pretty well made and are a good representation of the early style covers. Ive purchased several of these over the years. Theyre well made but the finish on them can easily be scratched. Putting on an other finish, like DuraCoat would solve the finish problem. These early style covers are not easily purchased so Ive bought all of them from Brownells. Im glad that Brownells sells them.

Read Description Carefully

I'm quite pleased with the quality of the cover; well made, good fit, and the Parkerized-type finish was exactly what I had hoped for. I WOULD buy it again. However, in my haste to order I assumed that "assembly" meant that it would be complete. I did NOT read the description thoroughly, and missed the disclaimer that the pin, spring and e-clip are not included. This meant submitting a separate order for those parts, with a wait of another week or so plus shipping charges almost equal to the order cost..

Good reproduction

I don't have any real issues with this reproduction part other than the finish is to shiny almost like a melonite and the weight of material used seems a tad lighter and less durable than the originals like made with Tin or a flimsy feeling. This is just my opinion. Other than that it works great and looks the part of 80s built m16a1. Fit and function is perfect.

Great, but doesn't have hardware

I should have read the past review that stated it doesn't come with hardware before ordering. Overall its a great dust cover. It feels like quality and was what I expected, I just wish it came as a kit. Would buy again.