M4-89 5.56x45 Nato 14.5'' Bbl (3)30 Round Mag Black

The M4-89 5.56x45 NATO 14.5" barrel rifle from Sons of Liberty Gun Works represents a purpose-built platform for shooters who demand reliability in tactical, law enforcement, or home defense roles. This semi-automatic rifle delivers the proven performance of the AR-15 platform in a compact configuration ideal for operators working in tight quarters or vehicle environments. With three 30-round magazines included, the M4-89 arrives ready to deploy straight from the box without additional investment in ammunition storage.

Built on a direct impingement system, the M4-89 chambers 5.56x45 NATO ammunition, the NATO-standardized cartridge trusted by military and law enforcement worldwide for its accuracy, velocity retention, and effective range to 500+ meters. The 14.5-inch barrel is pinned and welded to comply with federal firearms regulations while maintaining the velocity necessary for consistent performance—a critical engineering decision that balances maneuverability with ballistic effectiveness. Weighing 11.75 pounds fully configured, the rifle remains controllable during rapid fire or dynamic movement, and its polymer stock reduces weight without sacrificing durability or ergonomic function. The upper and lower receivers are precision-machined to military specifications, ensuring zero shift and consistent point-of-aim across extended use cycles.

Law enforcement tactical teams, civilian operators, and home defenders benefit from the M4-89's compact footprint and proven reliability in high-stress scenarios. The bare upper receiver (front and rear sights sold separately) allows maximum modularity—mounting optics, magnifiers, and accessories to match specific mission profiles. The standard Picatinny rail system supports industry-standard mounts and is compatible with virtually all AR-15 aftermarket components, enabling customization for precision shooting, close-quarters combat, or specialized training environments. No FFL transfer required for receivers alone; however, this complete rifle configuration requires proper federal firearms licensee transfer and compliance with all applicable federal, state, and local regulations.