Dd Lpk 556 Blk

The Daniel Defense Lower Parts Kit 556 Black (DD LPK 556 Blk) is a purpose-built, complete lower receiver parts kit for .223/5.56mm AR-15 platform rifles. This kit contains all the components necessary to assemble a functioning lower receiver, making it an essential choice for operators building custom AR platforms or replacing worn internal components on existing rifles.

As a complete lower parts kit, this assembly includes the trigger group, hammer, disconnector, safety selector, magazine catch, and all associated springs, pins, and detents required for full lower receiver functionality. Daniel Defense manufactures these components to mil-spec tolerances, ensuring reliable feeding, chambering, and consistent trigger reset across thousands of rounds. The kit's modular design allows builders to select trigger groups matched to their specific mission—whether that's duty-grade mil-spec performance for law enforcement and military applications, or precision tuning for competitive or training environments.

This lower parts kit serves armorers, gunsmiths, and individual builders working on .223/5.56mm rifle platforms. It's equally suited for tactical operators maintaining patrol rifles, marksmen building precision configurations, and training cadres equipping duty weapons. The black finish provides standard corrosion protection and a professional appearance across a wide range of operational contexts.

At 0.63 lbs with compact overall dimensions, this kit ships safely and stores efficiently alongside other build components. Sourcing your lower parts kit from a reputable manufacturer like Daniel Defense eliminates guesswork in component compatibility and function, reducing assembly time and ensuring your finished platform operates reliably under duty conditions.