PDX Complete Upper Features
The NEW Maxim Defense PDX(TM) U.R.G is built to handle the fierce demands of the Tier 1 community and designed to install on any Mil-Spec lower receiver. With the PDX(TM) U.R.G, you dominate close quarter encounters and achieve maximum energy on target without sacrificing accuracy at distance. At just 14″ in overall length and a 5.5″ barrel, the PDX(TM) U.R.G. is the ultimate choice for when concealment and personal defense is non-negotiable. The PDX(TM) U.R.G. is also equipped with newly invented Maxim HATEBRAKE(TM) Muzzle Booster. This patent-pending device significantly reduces recoil, decreases the flash signature, pushes gasses and concussion waves downrange away from the operator improving overall execution in short barrel pistols and rifles. The PDX U.R.G. uses a Direct Impingement system.
PDX Complete Upper Specifications
- Manufacturer: Maxim Defense Industries
- Manufacturer Part #: MXM-47813
- Model: Upper
- Model: PDX
- Caliber: 556NATO
- Barrel Length: 5.5″
- Color: Black
- Fit: AR Rifles
- HATEBRAKE installed under handguard
- M-slot compatible handguard
- Military grade materials [6Al-4V Titanium, 17-4 Stainless Steel, 7075 and 6061 Aluminum]
- HK height rail for a more rigid upper receiver
- Maxim Mil-Spec BCG or PDX/SCW compatible BCG
- Ships With Milspec BCG
| Barrel Length | 5.5 |
|---|---|
| Caliber | 5.56 |
| Condition | New in Box |
| Finish Per Color | Black |
| Manufacturer | Maxim Defense Industries |
| Manufacturer Part Number | MXM-47813 |
| Model | PDX Complete Upper |
| Type | Uppers |
| UPC | 680017478131 |
Frequently Asked Questions About This Product
Why buy Maxim Defense Industries PDX Complete Upper 5.56 NATO / .223 Rem 5.5" Barrel from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy Maxim Defense Industries PDX Complete Upper 5.56 NATO / .223 Rem 5.5" Barrel?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is Maxim Defense Industries PDX Complete Upper 5.56 NATO / .223 Rem 5.5" Barrel available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: RIFLES, Uppers.
What tags or features does this product have?
Key features and tags for this product include: RIFLES, Uppers.
Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.
FFL Transfer & Firearms Laws for Maxim Defense Industries PDX Complete Upper 5.56 NATO / .223 Rem 5.5" Barrel
All firearms, including the Maxim Defense Industries PDX Complete Upper 5.56 NATO / .223 Rem 5.5" Barrel, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the Maxim Defense Industries PDX Complete Upper 5.56 NATO / .223 Rem 5.5" Barrel is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.
![KELTEC SUB2000 GEN3 [BLK] SEMI AUTO](https://miamishooterssupply.com/wp-content/uploads/2025/05/6594213013ec577d847a70f2f92e28560a20e4c70af4f-300x300.png)
