Daniel Defense Bolt Carrier Group 5.56 – AR-15/M16 Platform

The Daniel Defense Bolt Carrier Group is a drop-in replacement or spare for AR-15 and M16 pattern rifles chambered in 5.56 NATO and .223 Remington. This BCG is built to the same specifications as the groups found in Daniel Defense factory rifles, offering reliable cycling and consistent lockup. Whether you're building a new upper, maintaining a duty rifle, or keeping a spare on hand, this is a proven component from a manufacturer known for mil-spec quality control.

The carrier is machined from 8620 steel and features a hard chrome-lined interior for corrosion resistance and ease of cleaning. The bolt is machined from Carpenter 158 steel and properly staked with hardened gas key fasteners. Magnetic particle inspected and shot-peened, this BCG is ready for high round counts. Installation is straightforward—no gunsmithing required.

• Part Type: Bolt Carrier Group
• Compatible Firearms: AR-15, M16 (5.56 NATO / .223 Remington)
• Carrier Material: 8620 Steel, Chrome-Lined Interior
• Bolt Material: Carpenter 158 Steel
• Finish: Phosphate (Carrier), Chrome-Lined Interior
• Gas Key: Hardened Fasteners, Properly Staked
• Testing: Magnetic Particle Inspected, Shot-Peened Bolt
• Installation: Drop-In
• Includes: Bolt Carrier Group with Extractor, Ejector, and Firing Pin