AR-15 5.56/300/350 Complete Nickel Boron Bolt Carrier Group / LEFT HAND

The AR-15 5.56/300/350 Complete Nickel Boron Bolt Carrier Group (BCG) – LEFT HAND is designed for smooth and reliable operation in left-handed AR-15 platforms. Coated with Nickel Boron, this BCG provides exceptional durability and corrosion resistance while reducing friction for smoother cycling, less wear, and easier cleanup.

This M16-style carrier is made from high-quality 8620 steel, and the 5.56/300/350 bolt is forged from 9310 steel, MPI tested for reliability. The chrome-plated firing pin and Nickel Boron-coated cam pin further enhance the BCG's smooth performance and long-lasting durability.

With its properly staked gas key and firing pin retaining pin, this complete Nickel Boron BCG is ready to drop directly into your left-hand AR-15 upper and provide years of reliable service. Whether you're building a new rifle or upgrading your current setup, this left-hand BCG ensures your AR-15 operates at peak performance.

Key Features:

• Left-Handed Design: Optimized for left-handed AR-15 shooters, this BCG features left-side ejection for smooth and reliable operation.

• Nickel Boron Coating: The Nickel Boron coating on the carrier, bolt, and cam pin ensures smoother operation, reduces friction, and makes for easier maintenance and cleaning.

• High-Quality Construction: The carrier is made from 8620 steel, and the 5.56/300/350 bolt is crafted from 9310 steel for maximum strength and durability.

• MPI Tested Bolt: The 5.56/300/350 bolt is Magnetic Particle Inspection (MPI) tested, ensuring its reliability and safety for high-performance shooting.

• Chrome Plated Firing Pin: A chrome-plated firing pin enhances wear resistance and performance.

• Properly Staked Gas Key: The gas key is properly staked for secure and reliable gas flow during operation.

• Easy Drop-in Installation: This complete BCG is ready to drop into your left-handed AR-15 upper for quick and hassle-free setup.