Diamondback DB15 Midnight Bronze 5.56 NATO Semi-Auto Rifle
The Diamondback DB15 Midnight Bronze 5.56 NATO Semi-Auto Rifle is a 5.56 NATO ar style rifles from Diamondback Firearms. It is available from 1 vendor at $1140.99.

Product Information
Name: Diamondback DB15 Midnight Bronze 5.56 NATO Semi-Auto Rifle
Brand: Diamondback Firearms
Category: AR Style Rifles
Caliber: 5.56 NATO
Barrel Length: 16"
Capacity: 30 rounds
UPC: 810035753150
SKU: UCEGBnT6k
Description
The Diamondback DB15 is a semi-automatic AR-15 pattern rifle chambered in 5.56x45mm NATO. Its 7075-T6 aluminum receiver and 4150 chrome moly barrel keep it at 6.95 lbs, and the Midnight Bronze finish is a sharp departure from the usual matte black AR.
Key Specifications
- Model: DB15
- Caliber: 5.56x45mm NATO
- Action: Semi-Auto
- Barrel Length: 16 inches
- Capacity: 30+1 rounds
- Trigger: Single-Stage
- Safety: Manual Thumb Safety
- Overall Length: 34" - 37.25"
- Weight: 6.95 lbs
- Stock: Adjustable Magpul ACS-L
- Sights: Optic Ready (no iron sights)
- Muzzle Device: Muzzle Brake
- Receiver Material: 7075-T6 Aluminum
- Barrel Material: 4150 Chrome Moly
- Twist Rate: 1:8"
Detailed Features
The Magpul ACS-L stock adjusts for length of pull, which is useful for shooting with or without body armor, or simply dialing in fit for different shooters.
The 1:8" twist rate handles the full range of common 5.56 projectile weights -- from 55-grain FMJ to heavier 77-grain match bullets -- without the compromise of faster or slower twists.
No iron sights are included. The flat-top upper is optic-ready, so budget some money for at least a set of backup sights if you plan to run this without an optic.
Usage
The DB15 covers the bases for range work, home defense, and varmint hunting with .223/5.56. The single-stage trigger and optic-ready upper mean you can set it up as a dedicated range rifle or a practical defensive carbine depending on what you mount on top.
Complete Specifications
| Caliber | 5.56 NATO |
| Model | DB-15 Diamond |
| Capacity | 30 rounds |
| Magazines included | 1 |
| Barrel length | 16" |
| Overall length | 37.25" |
| Weight | 111.2 oz |
| Action | Semi Auto |
| Finish | Black Nitride |
| Color | Bronze |
| Stock material | Synthetic |
| Sights | None, Optic Ready |
| Safety | Manual |
Frequently Asked Questions
What caliber is the Diamondback DB-15 Diamond?
The Diamondback DB-15 Diamond is chambered in 5.56x45mm NATO.
Who makes the DB-15 Diamond?
It is made by Diamondback.
What type of firearm is the DB-15 Diamond?
It is a semi-automatic AR-15 pattern rifle.
What is the barrel length of the DB-15 Diamond?
It has a 16-inch barrel.
How many rounds does the DB-15 Diamond hold?
It has a 30+1 capacity.
Is the DB-15 Diamond optic-ready?
Yes, the flat-top upper is optic-ready with no iron sights included.
Where can I buy the DB-15 Diamond?
Compare current vendor offers on this page.
Customers Say
AI-generated insights derived from customer reviews and discussions on popular gun-enthusiast forums.
The Midnight Bronze finish is the first thing people notice about the DB15 -- it's a real differentiator in a category full of black rifles, and most buyers seem to like it.
On the range, users report solid reliability and accuracy with standard ammunition. The modular AR platform is a draw for people who want to swap parts over time. The Magpul ACS-L stock gets mentioned positively.
Quality control is where opinions diverge. Some owners have had issues with components that suggest inconsistency in manufacturing, and a few note that fit and finish doesn't match higher-priced ARs. The general read is that it's a competitive option at its price point, but buyers expecting premium build quality may be disappointed. Going in with that expectation set appropriately, most owners are satisfied.
Where to Buy - 1 Offers Available
Price Range: $1140.99 - $1140.99
| Vendor | Price | Condition | Link |
|---|---|---|---|
| Grabagun Com | $1140.99 | New | Buy Now |






















