LanTac 556 Enhanced BCG Nickel Boron – AR-15/M16

The LanTac 556 Enhanced BCG replaces your factory AR-15 bolt carrier group with a precision-machined assembly designed for smoother cycling and easier maintenance. The nickel boron coating reduces friction and carbon buildup compared to standard phosphate or nitride finishes, making post-range cleanup faster while extending service intervals. This BCG addresses the wear points and friction issues common in high-volume shooting.

Machined from 8620 steel with a 9310 steel bolt, the entire assembly receives a nickel boron finish that's self-lubricating and corrosion-resistant. Installation is drop-in—no fitting or gunsmithing required. Simply remove your existing BCG and install this unit following standard AR-15 assembly procedures. Compatible with standard AR-15 and M16 pattern rifles chambered in 5.56 NATO/.223 Remington.

• Part Type: Bolt Carrier Group
• Compatible Firearms: AR-15, M16 (5.56 NATO/.223 Remington)
• Carrier Material: 8620 Steel
• Bolt Material: 9310 Steel
• Finish: Nickel Boron
• Installation: Drop-In
• Includes: Complete bolt carrier group assembly