Strike Industries Enhanced .308 Ultimate Dust Cover - Standard - Black

Manufactured by Strike Industries
SKU: SI-AR-UDC-E-308-01-BK
MPN: SI AR-UDC-E-308-01 BK
Manufactured by Strike Industries
10 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-308! 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! Features a cut-out window for easy installation or removal, without impacting the True-Seal capabilities!

NOTE: The SI UDC has been tested to fit Mega Arms MATEN, DPMS Oracle, SIG 716, YHM, and S&W upper receivers. While it is easily modified to fit other receivers with light sanding, the UDC is not guaranteed to fit all upper receivers.

  • Spring-loaded, internal detent rod
  • Polymer construction
  • Cut-out window
  • Resistant to corrosion, rust and fading
  • True Seal internal lip
  • Adjustable detent set screw
  • Weight:  0.4 oz
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BrandStrike Industries

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

Ratings & Reviews

10 reviews


Needs a little sanding for Aero M5 upper.


Dust cover looks great and I like the easy remove feature instead of the old way where you have to remove the barrel nut. Still needed some sanding (light) to fit with the Aero m5 upper.

Looks nice, fits OK now...


I bought this dust cover for my Aero M5 build. The quick release mounting works fantastic, however the door would not latch and required material be removed along the top edges in order to get proper fit and function. Works well now, so if your into spending twice as much as a standard dust cover and then hand fitting it then this is the piece for you...

Great design, but a slightly oversized


May require fitting to your receiver's ejection port

Minor trimming required


Minor trimming required to fit Aero M5 upper, just used a sharp utility knife, cuts very easy. Love the fact that it can be removed without removing the barrel nut.

Strike Industries Enhanced .308 Ultimate Dust Cove


The dust cover looks awesome and easy to install.


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Easy to install. Great product for the price. Super fast shipping even up here to Alaska.

Fit was perfect


Fit in my DPMS upper right away.The fit was tight which I consider optimal as it lapped itself with hand cycling to yield a perfectly smooth opening action.As far as a custom build goes it doesn't get much better.

Quick install. No modification.

by -

Very easy install on my aero m5 dark earth cerakoted upper with no modification

Aero M5 Receiver

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I used this for my 308 build that utilizing the Aero M5 receiver set. No modification was needed to make it work to fit. Just went right on and fit perfect. Maybe I'm one of the lucky ones?

Best dust cover for .308

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Great product I will order extra so I never have to install an old school dust cover. Installed on my aero in about 30 seconds with a pocket knife. The tension spring was easy to charge great product fast shipping.