AR-57 Upper Assembly Features
The AR-57 Upper Assembly combines functionality with advanced material technology. The 16″ barrel, finished in black melonite, offers exceptional durability and corrosion resistance, while the 1:9 twist rate is tailored for the 5.7x28mm cartridge, ensuring accurate and stable projectile flight. The assembly’s bolt carrier, buffer tube, and flash hider, all crafted from 8620 steel alloy, also receive a black melonite treatment, enhancing the overall resilience and longevity of the components.
Ergonomically designed for performance, this upper assembly features a forged 7075 T6 monobloc aluminum construction, providing a sturdy yet lightweight platform. The integration of a radial muzzle brake not only reduces recoil but also minimizes muzzle rise, allowing for quicker follow-up shots and improved accuracy. The AR-57 Upper Assembly is drilled and tapped, ready for customization with optics or other accessories to suit the shooter’s preferences.
AR-57 Upper Assembly Specifications
- Caliber: 5.7x28mm
- Barrel Length: 16″
- Twist Rate: 1:9
- Finish: Black Melonite
- Frame Material: 7075 T6 Monobloc Aluminum
- Bolt Carrier Material: 8620 Steel Alloy
- Sights: None
- Muzzle: Radial Muzzle Brake
- Additional Features: Black Melonite Treatment on Bolt Carrier, Buffer Tube, and Flash Hider
| Barrel Length | 16 |
|---|---|
| Caliber | 5.7 X 28 |
| Condition | New in Box |
| Finish Per Color | Black |
| Manufacturer | AR-57 |
| Manufacturer Part Number | ULT0116 |
| Model | Upper Assembly |
| Type | Uppers |
| UPC | 051497297985 |
Frequently Asked Questions About This Product
Why buy AR-57 Upper Assembly 5.7 X 28 16" 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 AR-57 Upper Assembly 5.7 X 28 16" 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 AR-57 Upper Assembly 5.7 X 28 16" 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 AR-57 Upper Assembly 5.7 X 28 16" Barrel
All firearms, including the AR-57 Upper Assembly 5.7 X 28 16" 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 AR-57 Upper Assembly 5.7 X 28 16" 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.
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