The Daniel Defense DDM4 V1 5.56mm 12" Rail CA is a semi-automatic AR-style rifle engineered to meet demanding performance standards while complying with California regulations. Built around a robust short stroke gas piston system and a mid-weight 18.6" barrel, it is designed for consistent reliability and smooth cycling with both .223 Remington and 5.56 NATO ammunition. The extended 12" rail provides generous space for optics, lights, and other accessories, allowing shooters to tailor the rifle to their preferred setup.

This California-compliant configuration features a fixed 10-round magazine, making it suitable for shooters in restrictive jurisdictions who still want a premium AR platform for training and range use. The rifle’s balanced barrel profile and quality construction support accurate shot placement over extended sessions, while the overall design remains manageable for a wide range of skill levels. Whether you are refining fundamentals on the range or building a dependable general-purpose rifle, the DDM4 V1 reflects Daniel Defense’s reputation for precision machining, durability, and thoughtful engineering.

• Manufacturer: Daniel Defense
• Model: DDM4 V1 5.56mm 12" Rail CA
• Caliber: .223 Remington / 5.56 NATO
• Action: Semi-Auto
• Barrel Length: 18.6"
• Number of Magazines: 1
• Capacity: 10
• Weight: Mid-Weight Barrel Configuration