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The Diamondback DB10 Black Gold .308 Win 18in 15in M-LOK 20+1 is a semi-automatic AR-style rifle built for precision shooting and hunting. It pairs an 18-inch fluted barrel with a rifle-length gas system for reliable cycling and reduced recoil. The 15-inch M-LOK handguard gives you plenty of rail space for lights, lasers, or bipods. It ships with a Magpul CTR stock, MOE-K2 grip, and a 20-round Magpul PMAG. At this price point, it delivers a solid blend of accuracy and handling for field use.
| Manufacturer | Diamondback Firearms |
|---|---|
| Model | DB10 Black Gold |
| Material | 7075-T6 aluminum upper and lower receiver, 4140 steel barrel |
| Compatibility | Accepts standard AR-10 .308 magazines (included Gen M3 PMAG) |
| Finish | Black hardcoat anodized |
| Weight | 8.4 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- 18-inch fluted barrel — The fluting reduces weight without sacrificing stiffness, helping you carry the rifle farther and cool it faster between strings of fire.
- 15-inch M-LOK V-rail handguard — This gives you continuous top rail and M-LOK slots at 3, 6, and 9 o’clock, so you can mount a bipod, light, or foregrip exactly where you need it.
- Magpul CTR stock and MOE-K2 grip — The CTR locks tight with a friction lock, and the K2 grip has a more vertical angle that reduces wrist fatigue during long range sessions.
- Rifle-length gas system — A longer gas system means softer recoil impulse and better reliability with a wider range of .308 loads, including match ammunition.
- 20+1 capacity with Gen M3 PMAG — You get a proven, durable magazine that feeds reliably and is easy to load by hand or with a speed loader.
Who It’s For
This rifle is a great choice for the family shooter who wants a .308 for deer hunting, target shooting, or steel plate matches. It’s also a solid option for the beginner stepping up from a .223/5.56 AR who wants more reach and energy downrange. If you’re teaching a teen or spouse to shoot a larger caliber, the softer recoil of the rifle-length gas system helps build confidence.
Pros and Cons
- Pro: Lightweight fluted barrel keeps the rifle portable for hiking to your stand or spot.
- Pro: M-LOK handguard is modern and works with almost any accessory on the market today.
- Pro: Magpul furniture is durable, comfortable, and easy to adjust for different shooters.
- Con: The trigger is a mil-spec unit, not a match-grade trigger. Many shooters upgrade to a Geissele or Timney trigger for tighter groups at longer ranges.
- Con: At 8.4 lbs unloaded, it’s not the lightest .308 AR, but the weight helps manage recoil.
Comparison
| Feature | Diamondback DB10 Black Gold | Zev Technologies AR-10 | Geissele Super Duty .308 |
|---|---|---|---|
| Barrel length | 18 inches | 16 inches | 16 inches |
| Handguard | 15-inch M-LOK | 15-inch M-LOK | 15-inch M-LOK |
| Weight | 8.4 lbs | 9.2 lbs | 8.8 lbs |
| Trigger | Mil-spec | Geissele SSA-E | Geissele SSA-E |
| Price | $1,119.29 | $2,499.00 | $2,899.00 |
| Best for | Budget-conscious precision shooter | Competition shooter | Duty/competition hybrid |
Frequently Asked Questions
Is this rifle ready to shoot out of the box?
Yes. The DB10 ships with one Magpul Gen M3 PMAG, and the rifle is fully assembled. You just need to attach your preferred optic, lubricate the action, and head to the range. Per Diamondback specs, the barrel is button-rifled and headspaced at the factory.
What kind of accuracy can I expect?
With quality match ammunition, many shooters report 1 MOA or better groups at 100 yards. The fluted barrel helps maintain consistency during longer strings. As with any rifle, your choice of optic and ammunition matters most.
Can I use this for hunting?
Absolutely. The .308 Winchester is one of the most popular hunting calibers in North America, effective on deer, hogs, and elk. The 18-inch barrel keeps it maneuverable in brush, and the M-LOK rail lets you mount a sling and light easily.
Is the handguard compatible with bipods?
Yes. The 15-inch M-LOK V-rail has M-LOK slots at the 6 o’clock position, so you can attach a bipod directly. It also has a continuous top Picatinny rail for a bipod mount or front sight.
Trust Your Gear — Order with Confidence
- ✅ Nationwide delivery to all 50 states
- ✅ Ships 1-2 business days from order
- ✅ 30-day returns on new, unused firearms
- ✅ Secure checkout with encrypted payment
Last updated: April 2026
According to the National Shooting Sports Foundation, .308 Winchester rifles account for nearly 25% of all centerfire rifle sales in the U.S. — and the DB10 gives you that proven caliber in a modern, shootable platform. If you’re looking for a reliable AR-10 that won’t break the bank, this is a strong contender. Pair it with a quality riflescope and a sling, and you’re ready for the field or the range.
FFL Transfer & Firearms Laws for Diamondback DB10 Black Gold .308 Win 18in 15in M-LOK 20+1
All firearms, including the Diamondback DB10 Black Gold .308 Win 18in 15in M-LOK 20+1, 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 DB10 Black Gold .308 Win 18in 15in M-LOK 20+1 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.
Frequently Asked Questions About This Product
Why buy Diamondback DB10 Black Gold .308 Win 18in 15in M-LOK 20+1 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 DB10 Black Gold .308 Win 18in 15in M-LOK 20+1?
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 DB10 Black Gold .308 Win 18in 15in M-LOK 20+1 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: AR Rifles.
What tags or features does this product have?
Key features and tags for this product include: .
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.
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FFL Transfer & Firearms Laws
All firearms, including the Diamondback DB10 Black Gold .308 Win 18in 15in M-LOK 20+1, must be shipped to a licensed Federal Firearms License (FFL) dealer. A background check and any required local paperwork must be completed before you can take possession.
How It Works
- Place your order online.
- Send us your preferred local FFL dealer info.
- We ship the firearm to your FFL after verification.
- Complete background check and pick up from your dealer.
Legal Compliance
We comply with all U.S. firearm laws. It is your responsibility to ensure the Diamondback DB10 Black Gold .308 Win 18in 15in M-LOK 20+1 is legal in your state. Some states (e.g. CA, NY, NJ) have restrictions on magazine size or certain features.
Helpful Links
Need help? Contact our team — we’ll guide you through selecting a compliant firearm and the FFL transfer process.
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