Solgw M4-exo3 16" 5.56 Urg

The Sons of Liberty Gun Works M4-exo3 16" 5.56 URG (upper receiver group) is designed for operators and serious shooters who demand reliability in tactical and training environments. This 16-inch upper receiver group is optimized for the 5.56 NATO cartridge, providing a compact platform that balances velocity, handling, and modularity.

Weighing 4.06 lbs, the exo3 offers a lightweight solution for carbine builds where every ounce matters during extended operations or patrol scenarios. The 16-inch barrel length is the industry standard for M4-pattern carbines, delivering sufficient velocity from 5.56 ammunition while maintaining overall compactness for vehicle operations, close-quarters training, and rapid target engagement.

Sons of Liberty Gun Works is renowned for precision manufacturing and attention to component quality, making the exo3 a dependable choice for builders seeking a complete, ready-to-assemble upper receiver. The design integrates seamlessly with standard M4 lower receivers, allowing users to complete their build with aftermarket stocks, triggers, and controls tailored to their specific mission profile.