The Diamondback DB15 .223 REM/5.56 16″ M-LOK 30RD Bronze is a U.S.-made AR-style rifle built around a proven gas-impingement system. It chambers both .223 REM and 5.56 NATO rounds, giving you flexibility at the range or in training. With a 16-inch barrel, M-LOK handguard, and a 30-round magazine, this rifle is ready for target shooting, skill building, and general-purpose use right out of the box.
| Specification | Detail |
|---|---|
| Manufacturer | Diamondback Firearms |
| Model | DB15 |
| Material | 7075-T6 aluminum upper/lower receiver, polymer furniture |
| Compatibility | .223 REM / 5.56 NATO ammunition |
| Finish | Bronze Cerakote |
| Weight | 6.5 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- M-LOK Handguard — why it matters: You can attach lights, grips, or bipods exactly where you need them without extra rails.
- 16″ Chrome-Moly Barrel — why it matters: This length balances maneuverability and accuracy, making it ideal for home defense drills or range sessions.
- 30-Round Magazine Included — why it matters: You start shooting immediately without buying extra gear. One mag is perfect for beginners learning reloads.
- Adjustable Stock — why it matters: Family members of different sizes can quickly set the length of pull for a comfortable, safe shooting position.
- Bronze Cerakote Finish — why it matters: The durable coating resists corrosion and wear, so the rifle looks good and stays protected through years of use.
Who It’s For
This rifle is built for families learning to shoot together, youth shooters stepping up from a .22, and beginners who want a reliable AR without spending a fortune. It’s also a solid choice for experienced shooters who need a backup training rifle or a platform to customize.
Pros / Cons
- Pro: Affordable price point for a U.S.-made AR with a free-float M-LOK handguard.
- Pro: Bronze Cerakote finish adds style and protection without extra cost.
- Con: The polymer furniture feels lighter than aluminum or Magpul options, which some shooters may want to upgrade later.
Comparison: Diamondback DB15 vs. Competitors
| Feature | Diamondback DB15 | Geissele Super Duty | Zev Technologies OZ9 |
|---|---|---|---|
| Caliber | .223 REM / 5.56 NATO | .223 REM / 5.56 NATO | 9mm (pistol platform) |
| Barrel Length | 16″ | 16″ | 4.5″ |
| Handguard | M-LOK free-float | M-LOK free-float | Integrated rail |
| Weight | 6.5 lbs | 7.2 lbs | 1.8 lbs |
| Price | $648.02 | $1,899 | $1,499 |
| Best For | Budget-friendly family training | Duty-grade precision | Compact carry |
FAQ
What ammunition can I use in the Diamondback DB15?
This rifle is chambered for both .223 REM and 5.56 NATO. You can shoot either safely, but always check your barrel markings and follow the manufacturer’s recommendations.
Can I mount a red dot sight on this rifle?
Yes. The upper receiver has a Picatinny rail, so any standard red dot, holographic, or magnified optic will attach directly. The M-LOK handguard also allows for offset mounts if needed.
Is this rifle suitable for a young shooter?
Yes. The adjustable stock and manageable 6.5-pound weight make it a great choice for teens or smaller adults. Always supervise new shooters and start with .223 REM rounds for reduced recoil.
Does the rifle come with a case or tools?
It ships with one 30-round magazine and a basic owner’s manual. A soft case or hard case is not included, but you can add one from our accessories section.
Trust & Delivery
✔ Nationwide delivery (all 50 states)
✔ Ships 1–2 business days
✔ 30-day returns on unused items
✔ Secure checkout with encryption
More Options
Browse our AR Rifles or check out AR Uppers and AR Lowers for custom builds.
Last updated: April 2026
Buy Firearms Online – Reliable & Affordable
This Diamondback DB15 .223 REM/5.56 16″ M-LOK 30RD Bronze is ideal for shooters looking to buy guns online with confidence. Built with precision engineering and tested performance, it’s a top-tier choice whether you're looking for home defense, sport shooting, or a trusted everyday carry.
Why Choose the Diamondback DB15 .223 REM/5.56 16″ M-LOK 30RD Bronze?
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Shipping & Return Policy
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