The Diamondback DB15 .350 Legend: A Straight-Wall Hunter Built for the Whole Family
The Diamondback DB15 350 Legend 16″ M-LOK 5rd Black is an AR-style semi-automatic rifle chambered in the straight-wall .350 Legend cartridge. It pairs a 16-inch threaded barrel with a 15-inch free-float M-LOK handguard for modular accessory mounting. The rifle ships with Magpul furniture, a single 5-round CPD magazine, and an A2 flash hider to meet field-use requirements. Per Diamondback specs, this rifle weighs in at just 6.5 pounds, making it easy for newer shooters to handle at the range or in the field.
| Manufacturer | Diamondback Firearms |
|---|---|
| Model | DB15 |
| Caliber | .350 Legend |
| Barrel Length | 16 inches |
| Handguard | 15-inch free-float M-LOK |
| Capacity | 5+1 (includes one 5-round CPD magazine) |
| Finish | Black anodized |
| Weight | 6.5 pounds (per manufacturer specs) |
| Condition | New |
Key Features
- 16-inch Threaded Barrel — why it matters: The barrel length balances maneuverability in the woods with enough velocity for ethical deer shots out to 200 yards. The threaded muzzle lets you add a suppressor or muzzle brake without a gunsmith.
- 15-inch Free-Float M-LOK Handguard — why it matters: Free-floating the barrel improves accuracy by removing pressure from the handguard. The M-LOK slots let you mount a bipod, light, or foregrip exactly where you need it.
- Magpul MOE Furniture — why it matters: The MOE stock and grip give you a solid, non-slip hold for wet or gloved hands. They’re also durable enough to handle years of hunting trips without cracking or rattling.
- Straight-Wall .350 Legend Chambering — why it matters: Many states restrict deer hunting to straight-wall cartridges. The .350 Legend delivers flat trajectories and mild recoil, making it a great choice for youth shooters or anyone new to centerfire rifles.
- 5-Round CPD Magazine Included — why it matters: This magazine complies with capacity limits in states like Ohio, Michigan, and Indiana, so you can hunt legally right out of the box.
Who It’s For
The DB15 .350 Legend is built for the family hunter — the dad or mom teaching a teenager their first deer season, or the experienced shooter looking for a lightweight straight-wall option. Its low recoil and simple AR controls mean beginners can focus on marksmanship fundamentals instead of fighting the gun. The M-LOK handguard also appeals to target shooters who want to add a bipod for bench rest practice.
Pros and Cons
- Pro: Lightweight at 6.5 pounds — easy to carry all day in the woods.
- Pro: M-LOK handguard gives you endless accessory options without adding bulk.
- Pro: Straight-wall .350 Legend is legal in more states than .223 or .308.
- Con: The 5-round magazine limits capacity for varmint hunting or range drills. You can buy 10-round magazines separately if your state allows them.
Comparison: Diamondback DB15 vs. Competitors
| Feature | Diamondback DB15 .350 Legend | Zev Technologies OZ9C | Geissele Super Duty AR-15 |
|---|---|---|---|
| Caliber | .350 Legend | 9mm (pistol) | 5.56 NATO |
| Barrel Length | 16 inches | 4.5 inches (pistol barrel) | 14.5 inches (pinned/welded) |
| Handguard | 15-inch free-float M-LOK | Integrated accessory rail | 13.5-inch M-LOK |
| Weight | 6.5 lbs | 26 oz (1.6 lbs) | 7.2 lbs |
| Primary Use | Hunting, target shooting | Concealed carry, competition | Duty, tactical, competition |
| Price | $704.83 | $1,499 | $1,799 |
The Diamondback DB15 offers a dedicated straight-wall hunting platform at a fraction of the cost of premium brands like Zev or Geissele. While those competitors excel in precision pistol and duty rifle roles, the DB15 focuses on what matters for deer season: reliability, light weight, and legal compliance.
FAQ
Is the .350 Legend legal for deer hunting in my state?
The .350 Legend is a straight-wall cartridge legal for deer hunting in many states including Ohio, Michigan, Indiana, Illinois, Iowa, and others. Always check your state’s specific regulations before hunting.
Can I use standard AR-15 magazines with this rifle?
No, the .350 Legend requires specific magazines designed for its straight-wall case. The rifle ships with one 5-round CPD magazine. You can purchase additional 5- or 10-round magazines from Diamondback or other manufacturers.
What accessories can I mount on the M-LOK handguard?
You can mount any M-LOK compatible accessory, including bipods, vertical grips, hand stops, flashlights, and laser aiming devices. The free-float design keeps your accessories from affecting barrel harmonics.
Does the barrel come threaded?
Yes, the barrel is threaded 5/8″-24 with a standard A2 flash hider installed. You can remove the flash hider and attach a suppressor or muzzle brake.
Ready to Bring Home the DB15 .350 Legend?
The Diamondback DB15 350 Legend 16″ M-LOK 5rd Black is a straight-wall hunting rifle that’s light enough for youth shooters, accurate enough for precision targets, and legal in the states that matter. At $704.83, it’s one of the best values in the straight-wall AR market. Order yours today and get ready for a season of clean shots and full freezers.
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
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Explore more options in our AR Rifles category, or check out our AR-15 and Hunting Rifles for similar builds. Last updated: April 2026.
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This Diamondback DB15 350 Legend 16″ M-LOK 5rd Black 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 350 Legend 16″ M-LOK 5rd Black?
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