Lantac Enhanced BCG 223/5.56 TiN

The Lantac Enhanced Bolt Carrier Group (E-BCG) is a precision-machined AR-15 bolt carrier assembly finished in Titanium Nitride (TiN) for improved wear resistance and ease of maintenance. Designed in an M16 full-auto style to add mass and increase lock time, the E-BCG uses forward-facing porting to alter gas flow for a flatter, smoother energy pulse and reduced upper-receiver pressurization in many suppressed setups. Critical dimensions are hard-turned and ground after heat treat, and the bolt is shot-peened and magnetically particle inspected for durability and reliability. The assembly weighs 11.7 oz and carries a lifetime warranty.

Key Specifications

• Designed to fit AR-15 platforms.
• Model identified as the 556 Enhanced Bolt Carrier Group.
• Carrier finish is Titanium Nitride (TiN) for wear resistance and reduced friction.
• The assembly weight is 11.7 oz.
• The carrier is precision machined from 8620 steel and heat treated.
• The bolt is manufactured from Carpenter 158 steel and is shot peened and MPI inspected.
• Features a 17-4PH domed cam pin hardened to H900 (~45RC) to reduce wear in the upper receiver.
• Incorporates forward porting with enlarged vents to alter gas venting characteristics.
• Assembled with Mil-Spec gas rings, a staked Mil-Spec gas key, and Grade 8 fasteners.

Built for shooters who prioritize consistent function and long-term durability, this TiN-coated E-BCG blends proven materials and finish technology with Lantac’s patented design features. Whether used in a suppressed setup, shorter-barrel build, or a standard AR-15, the enhanced mass, forward venting, and hardened components contribute to smoother cycling and extended service life.