Diamondback DB15 Combo 5.56x45mm NATO & 300 Blackout – 16" Barrel, 30+1 Capacity, FDE Carbon Receiver, 12" M-LOK Handguard, Magpul Stock & Grip, Includes 2 Uppers (DB1721K061)
Model/SKU: DB1721K061 • UPC: 810035752924 • Caliber: 5.56x45mm NATO & 300 Blackout • Barrel Length: 16" • Capacity: 30+1 • Material: FDE Carbon Receiver, M-LOK Handguard, Black Magpul Stock & Grip
The Diamondback DB15 Combo (Model DB1721K061) is the ultimate AR-15 platform rifle that offers exceptional versatility, performance, and value. Featuring a 16-inch barrel, a 30+1 capacity, and two included uppers chambered in 5.56x45mm NATO and 300 Blackout, this rifle is designed to handle a variety of shooting applications. Whether you're a tactical shooter, varmint hunter, or competitive marksman, the DB15 Combo delivers the reliable performance you need.
Crafted with a FDE (Flat Dark Earth) carbon receiver and a 12-inch M-LOK handguard, the DB15 Combo offers lightweight yet durable construction. The carbon receiver helps reduce the overall weight of the rifle without sacrificing strength or reliability. The 12-inch M-LOK handguard provides plenty of rail space for the addition of optics, lights, and other tactical accessories, making it highly customizable for a variety of setups.
The Black Magpul Carbine Stock and Magpul K2 Grip add comfort, stability, and ease of handling, ensuring that the rifle fits perfectly for extended shooting sessions. Whether you're using it for home defense, recreational shooting, or hunting, the DB15 Combo is designed for users who demand a high-performing, highly adaptable rifle.
Why Choose the Diamondback DB15 Combo 5.56x45mm NATO & 300 Blackout Rifle (DB1721K061)?
Versatile Combo: The DB15 Combo offers two interchangeable uppers – one chambered in 5.56x45mm NATO and the other in 300 Blackout – giving you the flexibility to choose your caliber depending on the task at hand. This versatility makes it perfect for a wide range of shooting activities.
Quality Construction: The FDE carbon receiver reduces the weight of the rifle while maintaining durability. The 12-inch M-LOK handguard allows for easy customization with additional accessories such as lights, lasers, and scopes, making it ideal for tactical applications.
Performance: With its 16-inch barrel and 30+1 capacity, the DB15 Combo is built to offer consistent, accurate shooting. Whether you’re at the range, in the field, or engaging in home defense, this rifle is designed for maximum performance.
Magpul Furniture: The Magpul Carbine Stock and K2 Grip provide a comfortable and secure grip, ensuring that the rifle stays steady during rapid or sustained shooting. This makes it a great choice for high-intensity training, hunting, and home defense situations.
Customization Ready: The M-LOK handguard gives you the ability to attach a wide range of accessories, enhancing your rifle’s functionality. Whether you need tactical lights, red dot sights, or bipods, the M-LOK system makes customization quick and easy.
Easy to Use and Maintain: Diamondback's rifles are known for their user-friendly design and easy maintenance. The tool-less assembly and highly reliable operation make it a great option for both beginners and seasoned shooters.
Key Features at a Glance
Caliber Options: 5.56x45mm NATO and 300 Blackout uppers included, giving you flexibility and adaptability
Barrel Length: 16-inch barrel for optimal balance between maneuverability and accuracy
Capacity: 30+1 round capacity, perfect for extended shooting sessions or tactical engagements
Receiver: FDE carbon receiver for lightweight durability and enhanced strength
Handguard: 12-inch M-LOK handguard for easy customization and the ability to add accessories
Stock & Grip: Magpul Carbine Stock and Magpul K2 Grip for comfortable handling and stability
Locking System: Semi-automatic action with reliable cycling for consistent performance
Versatility: Dual caliber options for different shooting needs, including hunting, home defense, and tactical use
Customization: M-LOK system allows you to easily add accessories like lights, scopes, and more
Dimensions: 16" barrel and 30+1 capacity for ideal portability and firepower
Ideal Use Cases
Home Defense: The Diamondback DB15 Combo offers reliable performance and high capacity, making it a great choice for home defense. The short 16-inch barrel ensures that the rifle is easy to maneuver in tight spaces while still delivering powerful shots.
Tactical Shooting: The M-LOK handguard allows you to attach a variety of tactical accessories such as red dot sights, tactical lights, and grips, making the DB15 Combo the perfect rifle for self-defense, law enforcement, or military-style operations.
Hunting: Whether you prefer varmint hunting with the 300 Blackout upper or target shooting with the 5.56 NATO upper, the DB15 Combo provides the versatility to adapt to different types of hunting scenarios. The lightweight design and high accuracy make it perfect for hunting small to medium-sized game.
Competitive Shooting: If you participate in competitive shooting sports, such as 3-gun competitions, the Diamondback DB15 Combo provides the accuracy, reliability, and rapid fire capability needed to perform at your best.
Range Practice: The 30+1 capacity and dual-caliber options make this rifle an ideal choice for range practice. Whether you’re working on your accuracy or preparing for an upcoming competition, the DB15 Combo will deliver consistent performance every time.
Care & Maintenance Tips
Cleaning: Regularly clean your Diamondback DB15 Combo to ensure proper functionality. Clean the barrel, bolt carrier group, and chamber after each use. Use high-quality cleaning solvents to remove carbon buildup and ensure smooth operation.
Lubrication: Apply a small amount of firearm lubricant to the moving parts such as the bolt carrier group and trigger assembly to ensure smooth cycling and prevent wear and tear.
Storage: Store your DB15 Combo in a cool, dry location, away from excess moisture and extreme temperatures. Use a gun safe or protective case to avoid scratches and damage.
Regular Inspection: Periodically inspect the rifle for signs of wear, especially the barrel, magazine, and safety mechanisms. Replace any damaged or worn-out parts to keep your rifle in optimal condition.
Specifications (Summary)
Brand: Diamondback Firearms
Model: DB15 Combo 5.56 NATO & 300 Blackout Rifle (DB1721K061)
UPC: 810035752924
Caliber: 5.56x45mm NATO and 300 Blackout
Barrel Length: 16-inch barrel
Capacity: 30+1 rounds
Receiver: FDE carbon receiver
Handguard: 12-inch M-LOK handguard
Stock: Black Magpul Carbine Stock
Grip: Magpul K2 Grip
Locking System: Semi-automatic action
Dimensions: 16-inch barrel and 30+1 capacity
Accessories: 2 upper receivers (5.56 NATO & 300 Blackout)
Ideal Use: Home defense, tactical use, hunting, competitive shooting, range practice
SEO Highlights (What Shoppers Search)
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AR-15 rifle combo with dual uppers 5.56 NATO & 300 Blackout
Diamondback DB15 FDE carbon receiver and Magpul stock and grip
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Meta Title (SEO)
Diamondback DB15 Combo 5.56 NATO & 300 Blackout Rifle – 16" Barrel, 30+1 Capacity, Magpul Stock, FDE Carbon Receiver, 12" M-LOK Handguard | DB1721K061
Meta Description (SEO)
The Diamondback DB15 Combo (DB1721K061) includes two upper receivers (5.56x45mm NATO & 300 Blackout), a 16-inch barrel, 30+1 capacity, and 12" M-LOK handguard. Built with an FDE carbon receiver and Magpul stock & grip, this rifle is ideal for home defense, tactical use, and competitive shooting. UPC 810035752924.
Structured Data (JSON-LD)
The Diamondback DB15 Combo provides ultimate flexibility with its dual-caliber uppers (5.56 NATO & 300 Blackout), M-LOK handguard, Magpul stock, and 30+1 capacity. Whether for home defense, hunting, or competitive shooting, this rifle delivers unmatched performance and versatility. The End
