Fostech Complete Bolt Carrier Group, Black

This standard full-auto M16 cut bolt carrier group is designed for optimal compatibility with the Echo AR-II and Echo Sport systems. Engineered for reliable performance, it ensures smooth cycling and durability during full-auto operation. Ideal for both upgrades and new builds, this bolt carrier group enhances your firearm's functionality, making it a valuable addition for any enthusiast seeking precision and reliability in their shooting experience.