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

Great Product


Absolutely the easiest dust cover to install and uninstall.



Does what it says and was amazingly fast getting here. Awesome company Primaryarms

Easy to install


Easiest dust cover to install. Fit was good on my Spartan Upper.

Works well. Easy install


Easy to install. Better looking than the stock cover. Over all a good buy. Wold have liked a ODG option as well, but can't complain.

Very attractive and functional Dust Cover


Excellent service as always. Fast shipping and a great product!! Every online purchase should be this good!!

Prefer my original


Excellent shipping with Primary Arms as always!! Doesn't work quite as well on my Spikes lower. I'm taking 3 stars away cause when I close the dust cover it pops back just a little. I tried adjusting the middle detent but it still doesn't completely close tight for me.

So easy install


Goes great with my lightweight build, installs in seconds, so easy

Dust cover


Great item. Fits as it should. Looks and works great. IOrdered a second one.



Great look and function! Primary Arms has the best service.

Ultimate dust cover


Great product and Primary Arms as usual ships fast without any issues! If you haven't installed one of these you don't know what your missing, very easy to maintain and you change to a different color or style 10 times quicker than a standard dust cover! I won't be surprised if the military doesn't soon adopt this item.