FailZero 5.56 Full Auto Bolt Carrier Group

Designed for shooters who value smooth operation and ease of maintenance, the FailZero 5.56 Full Auto Bolt Carrier Group features EXO Nickel Boron coating on all critical components. This advanced surface treatment reduces friction, supporting consistent cycling and minimizing the need for frequent lubrication, which can contribute to a more comfortable shooting experience.

The BCG arrives fully assembled and is compatible with most mil-spec M16, M4, or AR15 upper receivers, making installation straightforward. The Nickel Boron coating enhances durability and corrosion resistance, further supporting reliable function over extended use.

Features

• EXO Nickel Boron coating for permanent dry lubricity
• Fully assembled and ready for installation
• Compatible with most mil-spec M16, M4, and AR15 upper receivers
• Enhanced wear and corrosion resistance
• Reduced friction for smoother operation

Specifications

• Caliber compatibility: 5.56/.223
• Nickel Boron treated parts: Bolt, Extractor, Bolt Carrier, Cam Pin, Carrier Key, Firing Pin
• Brand: FailZero
• Color: Silver
• MPN: FZ-M16/4-01-NH
• UPC: 881314861781