Fostech Complete Bolt Carrier Group Black

Engineered for professional use, the Fostech Complete Bolt Carrier Group Black is designed to meet the demands of high-volume shooters and tactical professionals. Its construction and compatibility make it suitable for rigorous operational environments where reliability is essential.

This bolt carrier group features a full-auto M16 cut, ensuring compatibility with the Echo AR-II and Echo Sport systems. Each component is manufactured in the USA and undergoes strict quality inspections for dependable performance.

Features

• Standard full-auto M16 cut bolt carrier group
• Compatible with Echo AR-II and Echo Sport
• 100% USA made
• Black nitride finish for enhanced durability
• Designed for .223, 5.56, and 300 BLK platforms

Specifications

• MPN: 6226
• UPC: 639266299677
• Bolt: Shot peened, magnetic particle inspected, 9310 alloy steel
• Extractor: Shot peened, hardened tool steel with Viton Mil-Spec O-ring
• Gas Rings: 3, Mil-Spec
• Bolt Carrier: 8620 steel, heavy profile M16 style
• Gas Key Screws: Grade 8, properly torqued and staked to Mil-Spec
• Gas Key Material: 4130 steel
• Cam Pin: 4140 steel, black nitride finish
• Firing Pin: 8740 steel, centerless ground, hard chrome plated
• Weight: 11.6 ounces
• Finish: Black nitride
• Color: Black