Ejection Port Cover Assembly

Part Number: 4390

7 Review(s) Write a Review

Questions about this item? Be the first to ask here.

On sale ~~$14.95~~ $10.99

Retail Price:$14.95

Your Savings:$3.96(26%)

12870 left In Stock!

The item you are trying to purchase is currently out of stock.
Please enter your name, email, and phone number below.
We will contact you as soon as this product is available.

Name: *

Email: *

Phone: *

Verification: *

Type the word above...

Quantity

Description
Product Features
Customer Reviews

EJECTION PORT COVER ASSEMBLY

Dust Doors on the AR-15 / M16 platform are a barrier between the action and the elements, under constant spring pressure, the action of the bolt carrier reciprocating or being manually cycled the dust door will open up allowing ejection out of the door. During travel the dust door can be closed and held in place with a captive detent holding it against a groove cutout in the upper receiver. Typically made from the same grade of aluminum that the upper receiver is made from, dust doors are great way to protect the internals of your build!

Material: Aluminum - This dust door is made from the same aluminum found on the upper and lower receiver of an AR-15.

Compatibility: Standard Size Upper Receiver Door

Color / Finish: Black

SPECIFICATIONS:
Platform: AR-15
Model: Ejection Port Cover Assembly
Material: Aluminum
Markings: None
Size: Standard
Color / Finish: Black

Please note: If the listing says "In-Stock" it means we have the item(s) in stock. Please check this LINK to view our most up to date shipping status.

Warranty, Returns & Terms:

MMC Armory offers a 30 day return, refund and exchange policy. You must email or call to obtain an RMA number prior to any return, refund, or exchange. All returns must include the original order number, receipt or invoice, along with the customers billing address, shipping address, contact phone numbers, contact emails, and RMA number. Returns, refunds, and exchanges may take up to two weeks, not including transit times, for processing after we have received return product. Return shipping costs will be the responsibility of the returning party, with the exception of the wrong item being received or on warranty exchange during the first 30 days after delivery. Items returned for warranty will only be replaced or exchanged, no refund given on warranty items.

Rating Snapshot

Select a row below to filter reviews.

Average Customer Ratings

4.7

Reviews Sorting

Gunsmith

This dust cover assembly is of equal quality to that of Doublestar, DPMS, Core 15 and similar level of quality ARs. Although not shown in the picture, you do get the little C-clip, in fact, I got 2. Pretty savvy idea, since that is one of those things you loose easily during assembly. Spring is high quality and the cover functions easily once installed.

Did you find this helpful? 2 of 2 Found Helpful

Reviewed by: (Verified Buyer) Gary Danley from Kentucky on 11/6/2016

heavy duty

strong metal construction. fits and looks good. not cheap plastic junk.

Did you find this helpful? 1 of 1 Found Helpful

Reviewed by: (Verified Buyer) charles severns from brookport il on 12/24/2014

EJECTION PORT COVER ASSEMBLY

Fits good with the following exception, mated to omega upper. Upon assembly, cover would not open on receiver, completely stuck. Removed and lubed upper and ball, worked the cover to wear receiver and ball to make function correctly, now works perfect and re- installing

Did you find this helpful?

Reviewed by: (Verified Buyer) Larry Hutsell from California on 11/26/2015

mr.

Installed in minutes and functions perfectly. Recommend this item for finishing a stripped upper or for extra parts...great price. Thanks..

Did you find this helpful?

Reviewed by: (Verified Buyer) Charles JANKOWSKI from midwest on 9/7/2016

review

Part's was great for the money.

Did you find this helpful?

Reviewed by: (Verified Buyer) Stanley Kolodzie from Texas on 7/20/2014

Ejection Port Cover Assembly

Good quality and value. Easy installation.

Did you find this helpful?

Reviewed by: (Verified Buyer) Alan Chwick from Freeport, NY on 7/28/2014

retired

Item installed easily on upper AR receiver, a little too dull finish but considering the price is a great buy and works great!

Did you find this helpful?

Reviewed by: (Verified Buyer) Bernardo Bestard from Miami on 4/17/2017

KAK Industries Buffer & Spring Kit K-SPEC 5.5oz H3, Red Tip, 6061 HC Anodized, ODG Finish

~~$74.99~~ $59.99 Sale

In Stock

Add To Cart

Davidson Defense Noble Six 16.5-inch AR-15 5.56 NATO Rifle Complete Upper Build

~~$384.99~~ $289.99 Sale

In Stock

Select Options

Mercury Precision 20â€ .22-250 Barrel, Rifle-Length Gas, SOCOM Profile, 1:14 Twist, Black Nitride, 4150 Chrome Moly Vanadium, 0.750â€ Gas Block, 5/8x24 Thread

~~$169.99~~ $129.99 Sale

In Stock

Add To Cart

Davidson Defense 'Night's Edge 2.0' 16-inch AR-15 5.56 NATO Parkerized Rifle Upper Build Kit

~~$264.99~~ $199.99 Sale

In Stock

Select Options

[history_item_name]

[ITEMPRICE] ~~[ITEMPRICE]~~ [ITEMSALEPRICE] Sale

Clear

Ejection Port Cover Assembly

Rating Snapshot

Average Customer Ratings

Related Items

Browse Similar Items

Recently Viewed Items