Strike Industries Ultimate Dust Cover Capsule – AR-15 / M4 / M16, Black Polymer, 3.46" – ARUDCE0322 (UPC: 700598350586)
Give your AR-15 a smart, modern upgrade with the Strike Industries Ultimate Dust Cover Capsule ARUDCE0322. This enhanced ejection port cover is built from high-density black polymer and packed with clever features that solve the common problems of traditional stamped steel dust covers—while weighing a fraction as much. Strike Industries+1
Compatible with AR-15, M4, and M16 rifles in .223/5.56, including many billet uppers, this capsule-style dust cover installs quickly, seals tighter, and will never rust, deform, or lose its finish. Optics Agent+2Top Brass Tactical+2
Lightweight, High-Density Polymer Construction
The Strike Ultimate Dust Cover is molded from durable high-density polymer, making it tougher and more practical than standard sheet-metal covers. Strike Industries+1
Whether you’re building a lightweight patrol carbine, a competition rifle, or a hard-use duty gun, this cover helps keep weight down without sacrificing durability.
“True Seal” Lip Keeps Debris Out
One of the standout features of Strike’s Enhanced Ultimate Dust Cover (UDC-E) is the patent-pending “True Seal” internal lip. This design improves the seal between the cover and the ejection port compared to traditional dust covers. Strike Industries+1
Benefits of the True Seal lip:
Helps keep dust, sand, and debris out of your upper receiver.
Offers a tighter, more consistent seal, especially useful in dirty, windy, or sandy environments.
Supports better reliability over time by protecting your bolt carrier group and internal components.
For shooters who run their rifles in the field, on the range, or in adverse conditions, this feature is a real step up from basic covers.
Adjustable Detent Set Screw – Tune Your Opening Force
The Strike Industries Ultimate Dust Cover Capsule features a built-in adjustable detent set screw so you can tune how positively the cover snaps open and stays closed. Strike Industries+2Top Brass Tactical+2
Compensates for wear on the receiver over time, which can otherwise cause covers to pop open too easily or fail to latch.
Lets you increase or decrease opening power with a small flathead screwdriver—no need to replace the cover as the rifle ages. Strike Industries+1
Helps maintain a secure closure so the port stays shut until you fire.
This level of adjustability simply doesn’t exist with old-school mil-spec dust covers.
Fast, Tool-Light Installation & Easy Removal
Strike designed the Enhanced Ultimate Dust Cover system to attach and detach in seconds, instead of the sometimes frustrating process of installing a traditional rod and cover. Strike Industries+2Precision Tactical Systems+2
Key installation advantages:
Spring-loaded internal detent rod and cut-out window make it easy to install or remove on nearly any AR-15 upper. Strike Industries+1
Typical install time is roughly 5–10 seconds once your old cover is removed. Precision Tactical Systems+1
No need to remove your handguard or hammer in a rod like with some mil-spec setups.
If you’re frequently swapping uppers, changing out parts, or building rifles, the time savings quickly add up.
Capsule Design with Clean Black Finish
This specific model, ARUDCE0322, is the black “capsule” design version of the Strike Ultimate Dust Cover. Top Brass Tactical+2Shooting Surplus+2
Distinctive capsule-style embossing on the outside for a unique, modern look. Top Brass Tactical+1
Sleek black finish blends seamlessly with most AR receivers and rail systems.
Compact size, with an overall length of about 3.46 inches, ensuring proper fit on AR-15 / M4 / M16 ejection ports. Top Brass Tactical+2Shooting Surplus+2
It’s a small part that adds a subtle touch of style while delivering real functional benefits.
AR-15 / M4 / M16 Compatibility
The Strike Industries Ultimate Dust Cover Capsule is designed for:
Includes everything you need for installation:
Always verify compatibility with your specific upper receiver, but most standard AR-15 receivers will accept this cover without modification.
Built for Hard Use & Long Service Life
Strike Industries designed this cover for shooters who actually run their rifles:
Won’t corrode or rust, even with exposure to moisture, sweat, or adverse weather. Strike Industries+1
Won’t bend out of shape if impacted or dropped, a common issue with thin metal doors.
High-density polymer construction offers years of reliable service, even on high-round-count rifles. Precision Tactical Systems+1
For patrol carbines, training rifles, or range toys, it’s a simple upgrade that protects a critical opening on your upper receiver.
Key Specifications – Strike ARUDCE0322 Ultimate Dust Cover Capsule
From Strike Industries and major retailers, the Strike Ultimate Dust Cover Capsule AR-15, M4, M16 Black Polymer 3.46" – ARUDCE0322 includes: Precision Tactical Systems+3Strike Industries+3Top Brass Tactical+3
Brand: Strike Industries
Model: Enhanced Ultimate Dust Cover (Capsule design)
Part Number: ARUDCE0322
UPC: 700598350586
Platform: AR-15 / M4 / M16 (.223/5.56)
Material: High-density polymer
Color / Finish: Black
Length: Approx. 3.46"
Weight: Approx. 0.3 oz (very lightweight)
Features:
Capsule-style exterior design
Adjustable detent set screw to tune opening power
Spring-loaded internal detent rod for quick install / removal
“True Seal” internal lip for tighter ejection port seal
Will not rust, corrode, fade, or deform
Includes: Dust cover, spring, and pin
Why Choose the Strike Ultimate Dust Cover Capsule?
If you’re upgrading or building an AR-15 and want more than a basic stamped cover, the Strike Industries Ultimate Dust Cover Capsule ARUDCE0322 is a standout choice:
Lighter and more durable than traditional steel ejection port covers
Faster to install, easier to service, and more adjustable over the life of your rifle
Better sealing to keep dust and debris out of your action
Clean, modern black capsule look that complements any AR build
From first-time builders to experienced armorers, this dust cover is a smart, affordable enhancement that adds real function to your rifle for just a few dollars and a couple of minutes of install time.
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