Diamondback DB15 — 5.56×45mm NATO, 30+1, 16" Chrome-Moly Barrel, Black Hard-Coat Anodized Receiver, FDE Magpul® Carbine Stock & Grip (DB175AK221 • UPC 810035755475)

Lightweight, dependable, and range-ready out of the box. The Diamondback DB15 chambered in 5.56×45mm NATO blends a 16" chrome-moly barrel with a durable black hard-coat anodized receiver set and mission-ready FDE Magpul® furniture, including a carbine stock and MOE®-style grip. With a 30+1 capacity, mid-length ergonomics, and modern AR-15 features, this DB15 is an ideal choice for new owners and seasoned shooters who want a reliable carbine for training, home defense, and weekend range time.

Why Choose the Diamondback DB15 (DB175AK221)

• Proven 5.56×45mm NATO chamber: Compatible with 5.56 NATO and .223 Remington, giving you broad ammo flexibility for practice and performance.

• 16" chrome-moly barrel: Durable steel for long service life and consistent accuracy; the sweet spot for velocity, maneuverability, and accessory compatibility.

• Hard-coat anodized receiver: Black Type III anodizing on the upper/lower resists abrasion and corrosion for a clean, professional look that lasts.

• Magpul® FDE furniture: Carbine stock and ergonomic FDE grip deliver improved control, better shoulder weld, and comfortable handling—plus a distinctive two-tone aesthetic.

• 30+1 capacity: Accepts standard AR-15 pattern magazines for reliable feeding and quick reloads.

• AR-15 ecosystem ready: Standard interface for optics, lights, slings, and muzzle devices means effortless customization as your needs evolve.

Standout Features at a Glance

• Caliber: 5.56×45mm NATO (.223 Rem compatible)

• Capacity: 30+1 (AR-15 magazines)

• Barrel: 16" chrome-moly steel; threaded muzzle (device may vary by package)

• Receivers: Black hard-coat anodized

• Furniture: FDE Magpul® carbine stock & grip

• Controls: Standard AR-15 layout with familiar safety and magazine release

• Model / UPC: DB175AK221 / 810035755475

Performance You’ll Notice

• Balanced handling: The 16" configuration keeps weight forward for a steady sight picture while remaining quick in and out of positions.

• Comfortable ergonomics: Magpul® grip texture and carbine stock improve control for long range sessions and dynamic drills.

• Optics-ready design: Add your preferred red dot, LPVO, or magnified optic and confirm zero—no proprietary footprints required.

• Customization-friendly: From triggers to rails and muzzle devices, the DB15 plays nicely with the massive AR-15 aftermarket.

Pro Tip: Pair the DB15 with a quality 1–6× LPVO or a durable red dot plus flip-up irons. Confirm torque on mounts, witness-mark your screws, and re-check zero after your first 100 rounds.

Ideal Use Cases

• Range training & drills: Reliable cycling and comfortable ergonomics make reps efficient and enjoyable.

• Home & property defense: Modern accessory compatibility supports white lights, slings, and optics for low-light confidence.

• Skill development: An accessible platform for trigger work, reload mechanics, and positional shooting.

Specifications

• Manufacturer: Diamondback Firearms

• Model: DB15

• SKU: DB175AK221

• UPC: 810035755475

• Caliber: 5.56×45mm NATO (accepts .223 Rem)

• Capacity: 30+1

• Barrel Length: 16", chrome-moly steel, threaded

• Receiver Finish: Black hard-coat anodized (upper & lower)

• Stock: Magpul® carbine (FDE)

• Grip: Magpul®-style ergonomic grip (FDE)

• Operation: Semi-automatic, direct-impingement pattern (typical)

• Sights/Optics: Optics-ready; sight package may vary by distributor

• Muzzle: Threaded; device may vary (check listing)

• Overall Length & Weight: Varies slightly by configuration; verify current listing

Note: Specifications such as gas system, twist rate, handguard type, and included magazine may vary by production batch—always confirm the current product listing.

What’s in the Box (Typical)

• Diamondback DB15 5.56×45mm rifle

• Magpul® FDE stock & grip installed

• 30-round magazine (where legal)

• Owner’s manual & lock

Compliance & Ownership

• Know your local laws: Magazine capacity and rifle feature restrictions vary by state and municipality. Ensure this configuration is compliant in your area before purchase and transfer.

• Safe handling: Always follow the four rules of firearm safety; use quality ammunition from trusted manufacturers.

Care & Maintenance

• Break-in & lube: Heavily lube bolt carrier rails for the first session; verify function with your chosen ammo.

• Clean intelligently: Focus on the bolt carrier group, chamber, and gas system; avoid over-cleaning the bore.

• Torque & threadlocker: Confirm mount and accessory torque; use blue threadlocker where appropriate and re-check after the first range day.

SEO Metadata (Merchant-Ready)

SEO Title: Diamondback DB15 5.56 NATO — 16" Chrome-Moly Barrel, Black Anodized Receiver, FDE Magpul Stock & Grip (DB175AK221)
Meta Description (≤160 chars): Diamondback DB15 5.56 NATO with 16" chrome-moly barrel, black anodized receiver, and FDE Magpul stock & grip. 30+1 capacity. Model DB175AK221.
Target Keywords: Diamondback DB15 5.56, DB175AK221, 16" chrome moly AR-15, black anodized receiver AR, FDE Magpul stock and grip, 810035755475
Alt Text (Images): “Diamondback DB15 5.56 rifle with 16-inch chrome-moly barrel, black anodized receiver, and FDE Magpul stock/grip (DB175AK221).”

FAQ

Q: Will the DB15 run .223 Remington?
A: Yes. A 5.56 NATO chamber is compatible with .223 Rem and 5.56 NATO ammunition.

Q: What optics should I choose?
A: A rugged red dot for speed or a 1–6× / 1–8× LPVO for versatility. Co-witness with backup sights if desired.

Q: What’s the muzzle thread pattern?
A: Most 16" 5.56 carbines use 1/2×28; confirm your exact rifle’s spec on the product label before installing brakes or suppressor mounts.

Q: Is the furniture Mil-Spec compatible?
A: The Magpul® carbine stock and grip follow common AR standards, making future swaps simple.

Q: Does it include a magazine?
A: Many packages include a 30-round magazine (where legal). Check the specific retailer listing for contents.

Ready to build skills and hit the range with confidence, the Diamondback DB15 (DB175AK221) combines a 16" chrome-moly barrel, rugged black hard-coat anodized receiver, and FDE Magpul® stock & grip with the limitless customization of the AR-15 ecosystem—delivering performance you can rely on every time you press the trigger.

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