Unlock Precision and Performance: The Daniel Defense DDM4V5 URG MK12 Upper Receiver Group

For shooters, builders, and tactical professionals seeking an unparalleled blend of accuracy, durability, and modularity in their AR-15 platform, the Daniel Defense DDM4V5 Upper Receiver Group stands as a premier choice. This meticulously engineered component is designed to elevate your shooting experience, whether for competitive use, home defense, or duty applications. If you've been searching for a reliable, high-performance upper that integrates seamlessly with your existing AR lower, or you're embarking on a new custom build, the DDM4V5 URG offers the foundational excellence you demand.

A common question among firearm enthusiasts is, "What makes a superior AR-15 upper receiver group?" The answer lies in the uncompromising quality of its individual components, the precision of its assembly, and its ability to withstand rigorous use while maintaining exceptional performance. Daniel Defense, renowned for its commitment to excellence and American craftsmanship, addresses these needs head-on with the DDM4V5 URG MK12. This upper receiver group isn't just a collection of parts; it's a fully optimized system built to deliver consistent, dependable results.

Engineering Excellence: The Heart of the DDM4V5 URG

At the core of the Daniel Defense DDM4V5 Upper Receiver Group is its commitment to Mil-Spec standards and innovative design. Every aspect, from material selection to manufacturing processes, is geared towards maximizing reliability and longevity.

• Upper Receiver: The Foundation of Accuracy

  The upper receiver itself is CNC machined from 7075-T6 Aluminum, a material known for its exceptional strength-to-weight ratio, commonly used in aerospace applications. This robust foundation is then Type III Hard Coat Anodized, providing a durable, corrosion-resistant finish that can withstand the harshest environments. The inclusion of indexing marks and M4 Feed Ramps is crucial. Indexing marks assist in precise optics mounting, ensuring repeatability, while M4 Feed Ramps are vital for reliable feeding of ammunition, minimizing potential malfunctions under rapid fire or adverse conditions. This attention to detail in the receiver's design ensures a stable, consistent platform for all other components.

• The Barrel: Uncompromising Precision and Durability

  The 18-inch MK12 profile barrel is a standout feature, designed for enhanced accuracy at longer ranges. Crafted from a proprietary blend of stainless steel and Cold Hammer Forged, this barrel undergoes a manufacturing process that compresses the steel, aligning the grain structure for superior strength, incredible accuracy, and extended barrel life. The 1:7-inch twist rate is ideal for stabilizing a wide range of projectile weights, particularly the heavier, more ballistically efficient bullets favored by precision shooters. Furthermore, the barrel features a Diamond-Like Carbon (DLC) finish, which provides extreme hardness, lubricity, and corrosion resistance. Each barrel is High Pressure Tested (HP) and Magnetic Particle Inspected (MPI) to detect any potential flaws, ensuring only the highest quality barrels make it into production. This rigorous testing regime underscores Daniel Defense's dedication to safety and performance.

• Gas System: Optimal Functionality and Reliability

  The DDM4V5 URG employs a rifle-length direct impingement gas system, known for its smooth operation and reduced recoil impulse. The MK12 Low Profile Gas Block is a critical component, CNC machined from 416 hardened steel and finished with a black oxide coating for enhanced durability and corrosion resistance. A key Daniel Defense innovation is the single pinned low profile gas block. Unlike set screw or clamp-on designs, this gas block is drilled, taper reamed, and press-fit into place, then securely pinned. This method of attachment provides an incredibly secure and reliable interface between the barrel and the gas system, virtually eliminating any chance of the gas block shifting, which can lead to cycling issues. This secure attachment is a hallmark of Daniel Defense's commitment to flawless operation.

• Muzzle Device: Control and Performance

  Equipped with a Daniel Defense Flash Suppressor, this upper effectively mitigates muzzle flash, reducing the shooter's signature, especially critical in low-light environments. Manufactured from 17-4 PH Stainless Steel, an alloy known for its strength and corrosion resistance, and then Salt Bath Nitride Finished, this muzzle device is built to endure. The design is optimized to disperse gases, helping to maintain the shooter's position and target acquisition.

• Bolt Carrier Group (BCG): The Engine of the Rifle

  The M16 profile bolt carrier group is a robust, Mil-Spec component that forms the heart of the rifle's cycling mechanism. It is MP Tested (Magnetic Particle Inspected) to ensure structural integrity. The chrome-lined carrier and gas key resist wear and corrosion, crucial for long-term reliability and ease of cleaning. Furthermore, the gas key is properly staked, a vital step that prevents the screws from loosening under repeated firing, ensuring consistent gas system operation. This level of detail in the BCG ensures dependable cycling and longevity.

User-Centric Design: Enhancing the Shooter's Experience

Beyond the core components, the Daniel Defense DDM4V5 URG incorporates features specifically designed to improve the end-user experience, addressing common pain points and offering superior versatility.

• DDM4 Rail™ 12.0: The Ultimate Accessory Platform

  The Daniel Defense DDM4 Rail™ 12.0 is a free-floating quad rail handguard, CNC machined from 6061-T6 Aluminum and Type III Hard Coat Anodized. This robust rail system provides ample rail real estate for mounting a wide array of accessories such as optics, lights, lasers, foregrips, and bipods, allowing for unparalleled customization to fit specific mission requirements or shooting preferences. The free-float design ensures that pressure exerted on the handguard does not impact barrel harmonics, thus preserving the barrel's inherent accuracy. Integrated Quick Detach (QD) swivel attachment points are strategically placed at the front and back on both sides of the rail, offering fully ambidextrous sling attachment options. This thoughtful design allows for rapid sling transitions and comfortable carry, adapting to the shooter's needs.

• GRIP-N-RIP Charging Handle: Innovation for Suppressed Fire

  The independently ambidextrous GRIP-N-RIP Charging Handle is a significant innovation, especially for those who frequently use suppressors. The body is CNC machined from 7075-T6 Aluminum, while the handles and latch are machined from 6061-T6 Aluminum, ensuring durability and lightweight performance. Equipped with heavy-duty stainless steel roll pins, it's built to last. Its anti-gas features are engineered to redirect gas flow upward and away from the operator's face, significantly reducing the uncomfortable and potentially hazardous "gas to face" phenomenon common with suppressed AR-15s. This design allows both left- and right-handed shooters to operate the charging handle efficiently and comfortably, even when wearing gloves or operating under stress.

• Rail Panels: Comfort and Heat Management

  Included with the upper receiver group are Daniel Defense Rail Panels, crafted from Santoprene. This material is highly heat resistant, capable of withstanding temperatures up to 300° F, protecting the shooter's hand from barrel heat during extended firing sessions. These panels also provide enhanced grip and comfort, improving weapon control.

Why Choose the Daniel Defense DDM4V5 URG MK12?

"What are the benefits of investing in a Daniel Defense upper?" This is a question often posed by those looking to upgrade or build. The DDM4V5 URG offers several compelling advantages:

• Unmatched Reliability: From the pinned gas block to the properly staked gas key and HP/MPI tested components, every aspect is engineered for maximum operational reliability, reducing the chance of malfunctions when it matters most.
• Superior Accuracy: The Cold Hammer Forged, 18-inch MK12 profile barrel with a 1:7 twist, combined with the free-float DDM4 Rail, ensures exceptional precision shot after shot. This is ideal for scenarios demanding tight groups and consistent performance at various distances.
• Enhanced Durability: High-quality materials like 7075-T6 aluminum, 416 hardened steel, and 17-4 PH stainless steel, coupled with advanced finishes like Type III Hard Coat Anodizing, DLC, and Salt Bath Nitride, guarantee a product that will withstand years of heavy use.
• Optimized for Customization: The extensive DDM4 Rail 12.0 provides ample space and QD points for endless accessory configurations, allowing users to tailor their rifle to their specific needs without compromise.
• Improved Shooter Comfort: The GRIP-N-RIP charging handle significantly reduces gas to the face during suppressed fire, while the Santoprene rail panels protect hands from heat, leading to a more comfortable and enjoyable shooting experience.
• Made in the USA: Daniel Defense prides itself on manufacturing its products entirely in the USA, ensuring strict quality control and supporting domestic industry.

This upper receiver group solves the problem of sourcing disparate, potentially incompatible components for a build by offering a pre-assembled, meticulously tested, and performance-guaranteed unit from a single, trusted manufacturer. It is an ideal solution for anyone asking, "How can I maximize my AR-15's performance and reliability?" or "What's the best upper for precision shooting and tactical applications?"

The Daniel Defense DDM4V5 Upper Receiver Group is available for purchase at DEGuns, a trusted source for high-quality firearms and components. Whether you are a seasoned competitor, a dedicated law enforcement professional, or a responsible citizen prioritizing home defense, the DDM4V5 URG MK12 delivers the exceptional performance and peace of mind that only Daniel Defense can provide.

Technical Specifications and Details

Component	Detail
Upper Receiver	Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized.
Barrel	Proprietary Blend of Stainless Steel, Cold Hammer Forged, 1:7" Twist, 18" MK12 Profile, DLC Finished, and HP/MPI Tested.
Gas System	MK12 Low Profile Gas Block CNC Machined of 416 hardened steel with Black Oxide Coating, Rifle Length, Direct Impingement. Single pinned.
Muzzle Device	Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride Finished.
Bolt Carrier Group	M16 Profile, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas Key.
Handguard	Daniel Defense DDM4 Rail™ 12.0, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized, with ambidextrous QD swivel attachment points.
Charging Handle	GRIP-N-RIP Charging Handle, Body CNC Machined of 7075-T6 Aluminum, Handles & Latch CNC Machined of 6061-T6 Aluminum, Heavy Duty Stainless Steel Roll Pins, Type III Hard Coat Anodized. Engineered for suppressed fire.
Rail Panels	Daniel Defense Rail Panels Made from Santoprene, Heat Resistant to 300° F.
Sights	Sold Separately.
Country of Origin	Made in the USA.

Specification	Value
Caliber	5.56mm NATO
Gas System	Rifle Length
Barrel Length	18"
Barrel Profile	MK12
Product Weight	4.26 Pounds
UPC	815604015783
SKU	23-123-09138-047