FosTecH Complete bolt Carrier Group

Fostech Full Profile AR-15 Bolt Carrier Group (BCG)

The Fostech Full-Auto AR-15 Cut BCG is built for durability, reliability, and high performance, compatible with the Echo AR-II and Echo Sport trigger systems. It is available in three variations:

• Black Nitride Standard Mass (11.6 oz) – Enhanced wear resistance, extreme durability, and black in color
• Nickel Boron Standard Mass (11.6 oz) – Ultra-smooth cycling, self-lubricating, and easy to clean
• Nickel Boron Low Mass (8.5 oz) – Lighter for faster cycling and reduced recoil

Key Features:

• 9310 Alloy Steel Bolt – Shot peened, magnetic particle inspected
• Heavy Profile AR-15 Carrier – 8620 Steel, properly staked gas key
• Chrome-Plated Firing Pin – 8740 Steel, centerless ground for precision
• Low & Standard Mass Options – Choose between faster cycling or standard recoil impulse
• 100% USA-Made

Ideal For:

• Competition Shooting – Faster cycling & reduced recoil
• Tactical Applications – High durability under extreme conditions
• High-Performance AR-15 Builds – Precision-engineered for reliability

Whether you need the low-mass Nickel Boron BCG for speed, the standard Nickel Boron BCG for smooth operation, or the Black Nitride BCG for extreme durability, each option is designed for precision and reliability.