The Bootleg Adjustable Bolt Carrier Group (BCG) is a complete assembly crafted from durable S7 Tool Steel and features a superior Lithium Isonite Coating for enhanced resistance and longevity. This innovative BCG includes a 4-setting adjustable vent system that effectively relieves excess gas pressure generated by suppressor use. This design not only facilitates longer dwell time but also minimizes blowback, ensuring a smoother shooting experience. The gas adjustment can be easily altered while the BCG is installed in your rifle, providing seamless adjustments on the fly. Elevate your shooting performance with the Bootleg Adjustable Bolt Carrier Group.