Strike Industries Ultimate AR-15 Dust Cover

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Strike Industries Ultimate AR-15 Dust Cover: Next-Gen Protection

Elevate your AR-15 with the Strike Industries Ultimate Dust Cover (UDC), a game-changing upgrade that redefines convenience and functionality. Designed for effortless installation and removal in seconds, this innovative dust cover eliminates the need for tools or handguard disassembly – a vast improvement over traditional mil-spec designs.

Constructed from high-density polymer, the Ultimate Dust Cover offers exceptional durability and resistance to corrosion, deformation, and fading. Its adjustable detent set screw compensates for wear on the receiver, ensuring a precise fit and reliable closure over time.

The Ultimate Dust Cover Enhanced Version (UDC-E) takes performance to new heights with its added cut-out window for easy disassembly and compatibility with all AR-15 receivers. Weighing in at a mere 0.3 oz, this lightweight marvel caters to weight-conscious builders without sacrificing protection.

With Strike’s patented “True Seal” lip, the UDC-E provides an even tighter seal against dust and debris, safeguarding your rifle’s critical components. Choose from a variety of sleek designs in black or FDE to complement your build.

Note: Strike Industries strongly recommends applying blue Loctite threadlocker to the ball-detent thread after adjustment.


  • Brand: Strike Industries
  • Model: Ultimate AR-15 Dust Cover (UDC)
  • MPN: SI-AR-UDC-E-01-223-BK, SI-AR-UDC-E-01-223-FDE, SI-AR-UDC-E-03-223-BK, SI-AR-UDC-E-03-223-FDE, SI-AR-UDC-E-FLAG-223-BK, SI-AR-UDC-E-FLAG-223-FDE, SI-AR-UDC-E-TX-223-BK, SI-AR-UDC-E-TX-223-FDE
  • Material: High-Density Polymer
  • Weight: 0.3 oz
  • Length: 3.46 in
  • Available Colors: Black, FDE
  • Features: Easy Installation/Removal, Adjustable Detent, “True Seal” Lip
  • Package Includes: 1x Dust Cover, 1x Spring, 1x Pin
  • Compatibility: AR-15 Mil-Spec Upper Receivers, Most Billet AR-15 Upper Receivers, Aero Precision M4E1

Not Compatible With

  • VLTOR MUR: Modular Upper Receiver
  • ZRO Delta
  • Lantac Enhanced BCG (due to carrier and bolt design)
  • Bootleg Four Position Adjustable Carrier

Products available on this page:

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Strike Industries Warranty

How to return a defective item:

  1. BEFORE returning any products, please visit the CONTACT US section to complete and submit the “Return for Refund/Exchange” form to receive an RMA (Return Merchandise Authorization) containing your name, shipping address, phone number, email, and reason for the return (including, if applicable, information about the firearm, ammo, and usage environment for defective returns). Please include a copy of the receipt if possible as well.
  2. Once the RMA form has been processed, Strike Industries will provide a return shipping label for the refund or exchange of the product, including the shipping charges for non-expedited traceable shipping methods.
  3. Wrap the item with sufficient padding and place it in an appropriate box or bubble mailer for shipping.
  4. Ship out the package along with placing a printout of the RMA form we provided inside the box.
  5. All processed and approved refunds will be applied to the credit card used during the original purchase. You should allow one to two billing cycles for the refund to appear on your statement.
  6. Arrangements for a defective exchange or return must be made within one year of the warranty period, starting from the date the order is received. RMA numbers are valid for 14 days from the issue date. All packages received without an RMA number will be refunded, however, an automatic 20% handling fee ($2 minimum) will apply.
  7. If the product was purchased from a 3rd party, Strike Industries provides no refund but only an exchange option.

Contact Details:

  • Telephone: 714-557-9831

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.