DANIEL DEFENSE DDM4 MK12 - 556 NATO - 18" - 10+1 - BLACK
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Daniel Defense
DANIEL DEFENSE DDM4 MK12 - 556 NATO - 18" - 10+1 - BLACK
The Daniel Defense DDM4 MK12 in 5.56 NATO delivers precision long-range AR-platform performance with an 18-inch barrel and mil-spec craftsmanship trusted by professionals and serious enthusiasts alike.
- 18-inch government-profile barrel optimized for accuracy and velocity at distance
- Chambered in 5.56 NATO with full 223 Rem compatibility for versatile ammunition use
- 7075-T6 forged aluminum upper and lower receivers for maximum strength and durability
- Matte black hard coat anodized finish resists corrosion, wear, and harsh environments
- Daniel Defense MFR rail system provides full-length Picatinny real estate for accessories
- Collapsible stock and DD furniture deliver an ergonomic, adjustable shooting platform
Who This Is For
The DDM4 MK12 is built for competitive shooters, hunters, and tactical enthusiasts who demand a precision-grade AR-15 with extended effective range. Whether you're punching paper at 600 yards, running 3-Gun stages, or taking it to the field, this rifle's 18-inch barrel and refined Daniel Defense engineering make it a standout choice for shooters who refuse to compromise on quality.
Specifications
| Brand | Daniel Defense |
|---|---|
| Model | DDM4 MK12 |
| Caliber | 5.56 NATO / .223 Rem |
| Barrel Length | 18 inches |
| Capacity | 32+1 |
| Finish | Matte Black Hard Coat Anodized |
| Receiver Material | 7075-T6 Forged Aluminum |
| Stock | Collapsible / Adjustable |
| Sights | None Included |
| Magazine Included | 1 × 32-Round Magazine |
| Part Number | 02-142-13175-047 |
| Color | Black |
Frequently Asked Questions
What makes the 18-inch barrel on the DDM4 MK12 different from a standard AR-15?
The 18-inch barrel provides a longer dwell time and increased muzzle velocity compared to the standard 16-inch carbine barrel, resulting in improved accuracy and greater effective range — particularly with heavier 5.56 NATO or .223 Rem loads. This makes the MK12 configuration a favorite for precision rifle applications and longer-range engagements where a mid-length or carbine barrel falls short.
Does the DDM4 MK12 come with optics or iron sights?
No, the DDM4 MK12 ships without sights or optics installed. The full-length Daniel Defense MFR Picatinny rail system gives you a wide range of mounting options, so you can choose the optic that best suits your intended use — whether that's a low-power variable optic (LPVO), a fixed-power scope, or a red dot with a magnifier.
Is the Daniel Defense DDM4 MK12 compatible with standard AR-15 accessories and magazines?
Yes. The DDM4 MK12 is built on a standard AR-15 platform, making it compatible with STANAG-pattern magazines and the vast majority of AR-15 aftermarket accessories including triggers, handguards, stocks, and grips. The rifle ships with one 32-round Daniel Defense magazine, and any standard 5.56/.223 STANAG-compatible magazine will also function reliably.
- Caliber:
- 556 NATO
- Capacity:
- 10+1
- Color:
- Black
- CA Compliant:
- Yes
- Barrel Length:
- 18"
- Type:
- Rifle