Diamondback Obsidian DB15 Features
The DB15 is equipped with a 16-inch chrome moly vanadium barrel, providing superior accuracy and durability. The 1:8 twist rate ensures stability for a wide range of bullet weights, making it a versatile choice for shooters. The threaded barrel (1/2×28) with an Obsidian muzzle brake is suppressor-ready, allowing for additional recoil reduction and muzzle control.
The 15-inch M-LOK anti-rotation rail provides ample space for optics, grips, lights, and accessories, ensuring maximum customization potential. The Magpul MOE K2+ grip and Magpul CTR stock offer superior ergonomics and handling, making this rifle comfortable and easy to maneuver.
The forged 7075-T6 aluminum upper and lower receivers enhance durability without excessive weight, while the two-position thumb safety provides added security and ease of use.
Diamondback Obsidian DB15 Specifications
- Manufacturer: Diamondback Firearms
- Model: Obsidian DB15
- Category: Rifles
- Caliber: .223 Remington / 5.56 NATO
- Capacity: 30+1 rounds
- Overall Length: 33″ – 36.25″
- Barrel Length: 16 inches
- Barrel Material: Chrome Moly Vanadium
- Twist Rate: 1:8″
- Muzzle Device: Obsidian Muzzle Brake
- Thread Pattern: 1/2×28
- Sights: None (Optics Ready)
- Handguard: 15″ M-LOK Anti-Rotation Rail
- Receiver Material: Forged 7075-T6 Aluminum
- Finish: Jungle Green Cerakote
- Grip: Magpul MOE K2+
- Stock: Magpul CTR Adjustable Stock
- Safety: 2-Position Thumb Safety
- Weight: 6.6 lbs.
- Shipping Weight: 8.35 lbs.
- Magazine: 30-round PMAG
| Barrel Length | 16 |
|---|---|
| Caliber | 5.56 |
| Capacity | 30 |
| Condition | New in Box |
| Finish Per Color | Jungle Green |
| Manufacturer | Diamondback |
| Manufacturer Part Number | DB1784K791 |
| Model | Obsidian DB15 |
| Type | Modern Sporting Rifles |
| UPC | 810035756229 |
Frequently Asked Questions About This Product
Why buy Diamondback Obsidian DB15 Jungle Green 5.56 16" Barrel 30-Rounds 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 Diamondback Obsidian DB15 Jungle Green 5.56 16" Barrel 30-Rounds?
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 Diamondback Obsidian DB15 Jungle Green 5.56 16" Barrel 30-Rounds 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: Modern Sporting Rifles, RIFLES.
What tags or features does this product have?
Key features and tags for this product include: Modern Sporting Rifles, RIFLES.
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 Diamondback Obsidian DB15 Jungle Green 5.56 16" Barrel 30-Rounds
All firearms, including the Diamondback Obsidian DB15 Jungle Green 5.56 16" Barrel 30-Rounds, 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 Diamondback Obsidian DB15 Jungle Green 5.56 16" Barrel 30-Rounds 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.

