Daniel Defense DD5 V4 7.62×51 18″ 20rd M-LOK
About this product
The Daniel Defense DD5 V4 is a semi-automatic 7.62×51 NATO battle rifle featuring an 18-inch cold hammer-forged barrel and adjustable gas system for suppressor compatibility. Built on Daniel Defense's reinforced 7075-T6 receiver set, it bridges the gap between precision rifle accuracy and combat rifle reliability. This platform accepts SR-25 pattern magazines and includes M-LOK mounting throughout its 15-inch handguard.
What is the Daniel Defense DD5 V4 used for?
The DD5 V4 serves as a designated marksman rifle capable of engaging targets effectively to 800 yards with match-grade ammunition. Its 18-inch barrel optimizes velocity for the 7.62×51 cartridge while maintaining maneuverability in vehicle or urban environments. The adjustable gas block allows reliable suppressed operation, making it suitable for both hunting applications and defensive scenarios where sound suppression is critical.
How does the Daniel Defense DD5 V4 compare to the Stevens 334 Rifle?
The DD5 V4 delivers semi-automatic capability where the Stevens 334 operates as a bolt-action system, providing faster follow-up shots at the cost of increased weight. At 8.6 pounds unloaded, the Daniel Defense weighs 2.1 pounds more than the Stevens 334 but offers substantially higher practical rate of fire. For precision shooting from fixed positions, the Stevens 334 represents better value, while the DD5 V4 excels in dynamic scenarios requiring rapid engagement.
What does it weigh and what are the dimensions?
The rifle weighs 8.6 pounds empty and measures 35.375 inches at its shortest stock configuration. The 18-inch barrel contributes to an overall length range of 35.375-39 inches across the six-position stock adjustments. The 15-inch M-LOK handguard provides 47 individual mounting points for accessories while maintaining a slim 2.1-inch diameter profile.
Who is this NOT for?
This rifle isn't suitable for first-time shooters or those seeking budget-friendly options under $1,500. The $2,812 price point and specialized SR-25 magazine system create significant entry barriers compared to more common AR-10 platforms. Law enforcement agencies operating on tight budgets might prefer more economical options like the Stevens 334 Rifle for similar ballistic performance.
What's in the box?
The rifle ships with one 20-round Magpul PMAG, Daniel Defense's proprietary flash hider, and a full-latch impact-resistant case. Daniel Defense includes their standard operator's manual and warranty documentation, along with the necessary tools for gas block adjustment. The case interior features precisely molded foam with cutouts for the rifle and two additional magazines.
Is the Daniel Defense DD5 V4 worth it at $2,812?
At $2,812, the DD5 V4 justifies its cost through exceptional build quality and suppressor-ready features that cheaper alternatives lack. The cold hammer-forged barrel typically delivers 15,000-round service life versus 5,000-7,000 rounds for button-rifled competitors. For shooters requiring reliable semi-automatic .308 performance with suppressor compatibility, the investment pays dividends in longevity and operational flexibility.
Specs at a glance
Video review
Pros & cons
What works
- Adjustable gas block with 8 positions — enables perfect suppressor tuning without tools
- 18-inch cold hammer-forged barrel — delivers 15,000-round service life versus 7,000 rounds for button-rifled competitors
- 7075-T6 receiver set — withstands 30% higher stress loads than 6061-T6 aluminum
- 15-inch M-LOK handguard — provides 47 attachment points while weighing 4.2 ounces less than Picatinny equivalent
Trade-offs
- SR-25 magazine compatibility — limits magazine options compared to DPMS-pattern AR-10 platforms
- 8.6-pound unloaded weight — 1.3 pounds heavier than similar-length AR-10 rifles due to reinforced components
- No iron sights included — adds $150-300 for backup sight system installation
- Proprietary handguard attachment — requires specific wrench not included for full disassembly
Expert review
Key attributes
| upc | 818773021210 |
| manufacturer | Daniel Defense |
| manufacturer part number | 02-158-13210-047 |
| action | Semi-Auto |
| atf type | MODERN SPORTING RIFLE |
| barrel finish | Phosphate |
| barrel length | 18'' |
| caliber/gauge | .308 / 7.62 NATO |
| capacity | 20-Round |
| color | Black |
| length | 37.75 |
| model | DD5 V4 |
| number of magazines | 1 20 rd. PMAG |
| package height | 4.0 |
| package width | 13.0 |
| product type | AR |
| safety | Safety Selector Switch |
| shipping weight | 16.4 |
| sights | No |
| state restriction (ca) | NO DIRECT SHIP TO CALIFORNIA |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
| state restriction (or) | NO SALE TO OREGON |
| state restriction (ri) | NO DIRECT SHIP TO RHODE ISLAND |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |
| thread pattern | 5/8"x24 |
Frequently asked questions
- Is it compatible with standard AR-10 magazines?
- No, the DD5 V4 requires SR-25 pattern magazines specifically, which have different magwell dimensions than DPMS-pattern AR-10 magazines. Magpul PMAG 25-round SR-25 magazines function reliably, while some metal magazines may require slight fitting. The rifle includes one 20-round PMAG with purchase.
- Does the adjustable gas block require special tools?
- The gas block adjusts using a standard 1/8-inch hex key, which Daniel Defense includes with the rifle. Adjustment requires approximately 15 seconds per setting change, with eight distinct positions between suppressed and unsuppressed operation. No proprietary tools or disassembly beyond the handguard is necessary.
- Can I mount a bipod directly to the M-LOK system?
- Yes, the 15-inch handguard features M-LOK slots at the 6 o'clock position specifically for bipod mounting. Most modern M-LOK bipods like the Magpul M-LOK Bipod attach securely without additional adapters. The system maintains zero better than KeyMod or Picatinny rail solutions according to military testing.
- What's the thread pitch for suppressor mounting?
- The barrel features standard 5/8x24 threads compatible with most .30 caliber suppressors. Daniel Defense includes their Superior Suppression Device flash hider, which provides CRUSH WASHER compatibility with SilencerCo and Dead Air mounting systems. Threads are properly timed for immediate suppressor attachment.
- How long does shipping take to FFL dealers?
- Ironclad Armory processes transactions within 2 business days, with ground shipping adding 3-5 additional days to most continental US locations. All firearms ship via UPS or FedEx with adult signature required upon delivery. International shipments require special export licensing averaging 30-45 days processing.