Strike Industries Enhanced Ultimate Dust Cover - Capsule - Black

Manufactured by Strike Industries
SKU: SI-AR-UDC-E-223-03-BK
MPN: SI AR-UDC-E-03-223 BK
Manufactured by Strike Industries
53 Reviews

Out of Stock



Strike Industries products are designed by shooting experts for the shooting sportsman.

The Strike Industries Enhanced Ultimate Dust Cover is the world's first quick disconnect ejection port cover for the AR-15! Manufactured from high-density Nylon polymer, the UDC will never corrode, rust, fade, or deform. It features an internal True Seal lip to better protect your rifle from the elements. A built-in adjustable detent screw allows you to easily compensate for receiver wear, or increase/decrease opening power.

The spring-loaded internal detent rod provides easy installation and take down, often taking just 5-10 seconds! This enhanced version is thinner, allowing greater compatibility with nearly any AR-15 upper receiver, including billet uppers, on the market as well as reducing the weight to a minimal 0.3 oz! The new design also features a cut-out window for easy installation or removal, all without impacting the True-Seal capabilities!

  • Spring-loaded, internal detent rod
  • Polymer construction
  • Cut-out window
  • Resistant to corrosion, rust and fading
  • True Seal internal lip
  • Adjustable detent set screw
  • Length:  3.46”
  • Weight:  0.3 oz
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BrandStrike Industries
EngravingCapsule Pattern

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

Good Product


I've always liked this design.

Great Product


Lightweight and easy to install/remove with just the tip of a knife or key.



Look good and work great

looks good


Looks nice, I don't know if it is really that much better of a product than the old milspec type, but it weighs less and works the same.

Ar15 dust cover


Love it . Gets a lot of attention . All good..

Very nice product.


Not much to say really. It's a nice looking product and it installs easily. It functions no better or worse than a cheapy, but it is aesthetically more pleasing.

A plus performance again


Ordered the part, got all the progress emails, part arrived in 2 days was GTG. Primary Arms has always met or exceeded my expectations. Great products, great prices, great people!!!

Looks great


Plastic a bit flimsy but fits well and looks great.

It's cool


Quick delivery, works great, looks cool. I'll buy from here again

Great Upgrade!


Strike Industries has become one of my favorite manufacturers of upgrade accessories for the AR-15/AR-308 platforms! I already had one of their original Ultimate Dust Cover's on a .300 AAC SBR AR-15 of mine and it works great, but the improvements they have made with the "Enhanced" version make it even BETTER! It DOES fit better and is easier to install and is MUCH easier to remove when desired. I always HATED the pain of installing and removing the standard ejection port cover, especially having to remove the barrel nut to remove the long pin or risk damaging the finish pulling it out the rear! This SOLVES all of that! They add a great look to the weapon as well as some personality. I plan to buy several more for my other AR's.