Diamondback Firearms
DB15O 5.56MM BROWN 16" M-LOK
Product Details
DB15O 5.56MM BROWN 16" M-LOK. Caliber/Gauge: 223 Rem | 5.56 NATO Model: Obsidian DB15 Rifle Action: Semi-Auto Barrel Length: 16" Capacity: 30 + 1 Finish: Brown Cerakote Sights: No Sights Overall Length: 33" to 36.25" Weight: 6.6 lbs. Rate of Twist: 1-in-8 Country of Origin: ` Features: - 15" M-LOK Anti-Rotation Rail - Obsidian Muzzle Brake - Magpul MOE K2+ Grip
Specifications
| Brand | Diamondback Firearms |
|---|---|
| UPC | 810035756199 |
| Caliber | 5.56 NATO / .223 |
| Action | Semi-Auto |
| Color / Finish | Brown |
| Finish Type | Cerakote |
| Barrel Length | 16" |
| Capacity | 30 rounds |
| Condition | New |
Buying this item
- Can I buy the DB15O 5.56MM BROWN 16" M-LOK online and have it shipped to me?
- Firearms cannot ship to your home. Buy it here and pick it up at Iron Valor Armory in Rocky Mount, NC after a NICS background check, or have it shipped to a licensed FFL dealer near you for their transfer fee.
- How old do I have to be to buy the DB15O 5.56MM BROWN 16" M-LOK?
- You must be 18 or older with valid government ID for rifles and shotguns (21+ for handguns).
- Is the DB15O 5.56MM BROWN 16" M-LOK in stock?
- Yes — live distributor inventory shows it in stock and it ships or is ready for pickup within 1–3 business days.
- What is the return policy?
- Non-firearm items may be returned within 30 days (a restocking fee of up to 15% applies if the packaging was opened). Firearms and ammunition are final sale once transferred, per federal law.
All firearm sales require background checks and compliance with federal, state, and local laws. You must be 21+ for handguns/stripped receivers and 18+ for long guns.
Frequently bought together
Complete the setup
Ammo, magazines and optics matched to DB15O 5.56MM BROWN 16" M-LOK. Everything here ships to your door or is ready at pickup.
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5.56 NATO / .223 ammunition
Same caliber as this firearm.
Magazines that fit
Matched by caliber and platform.
Optics for this rifle
We mount and bore-sight for pickup.
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