Mil-spec AR-15 Dust Cover / Port Door Kit sourced from Top Tier Supplier of Military and OEM Manufacturers.
Includes:
- Ejection Port Cover Door (Dust cover)
- Steel Spring (color may vary)
- Steel Rod
- C-Clamp
- Fits: AR-15
NBS — Our In-House Brand for Builders Who Demand Reliable Performance and Real Value.
Designed for builders who demand reliable performance and real value without unnecessary hype or inflated pricing. NBS stands for "No Bullshit."
Built on Strong Industry Partnerships
Through the strong partnerships AR15Discounts has built with trusted suppliers and vendors, we regularly gain access to premium components often manufactured by or for leading industry names. By purchasing these in volume, we bring them to you under the NBS label, ensuring proven quality reaches your build at a fair price, without the added cost of extensive marketing.
Quality You Can Trust
Every NBS product is specified to the exacting standards we apply to our own rifles. Each component features precision CNC machining, American-made key components where it counts, robust materials, dependable steels, and durable finishes engineered for long-term reliability. These items are either sourced from reputable OEMs or carefully assembled in-house using established name-brand elements, maintaining consistent excellence throughout the lineup.
Complete Solutions for Serious Builders
From stripped and complete uppers to bolt carrier groups, handguards, lower parts kits, and beyond, NBS provides a unified, affordable selection that allows you to complete confident, high-performing builds.
Backed by a Limited Lifetime Warranty
All NBS products come with our Limited Lifetime Warranty for the original owner, covering defects in materials and workmanship. AR15Discounts stands firmly behind these parts because, as shooters ourselves, we use and trust them, delivering honest value and gear you can rely on.
| Weight | 0.64 oz |
|---|---|
| Dimensions | 3.35 × 0.88 × 0.34 in |
| MPN | AR15-Dust-Cover |
| UPC | 999993135 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
Customer Reviews
- Reviews
- Questions
- price
- quality
- finish
- upper
- Works
- AR15
- nothing
- review
US
Couldn't Ask for Anything Better!
This is a great looking ejection port cover, can't believe the quality for such a low price! Installed easily on my A1 upper, which I also purchased from AR15 Discounts. Opens and closes like a champ. Thanks, AR15 Discounts, for yet another excellent product!
USAR15 parts fast friendly and quality!
It's a dust cover/Door!
USexcellent milspec cover
great dust cover
USUpper receiver parts kit
Good and tight
USIt works...
Mil-spec, installed easily & works.
