Golden Eagle Metal Gearbox Complete Metal Lower Receiver - Black/Tan Chronographs Built with a full metal

Built with a full metal receiver

It's here to disrupt the establishment and dominate the market

Includes Housing & Bottom Plate

They are compatible with the Smart Parts Freak replaceable inserts

Golden Eagle Metal Gearbox Complete Metal Lower Receiver - Black/Tan Chronographs Built with a full metalGolden Eagle metal gearbox complete metal lower receiver black and tan is a ready to install upgrade solution designed for airsoft players who want durability, power, and consistency in an M4 platform. This assembly combines a complete metal lower receiver with a full metal version 2 gearbox, offering a solid foundation for rebuilds, repairs, or performance focused projects. The receiver and gearbox are constructed from metal, with the gearbox shell