Description
Engineered for durability, accuracy, and reliability, the Sons of Liberty Gun Works M4-89 is a battle-ready AR-15 chambered in .223/5.56. This rifle features a 14.5” barrel pinned and welded to 16” OAL, topped with a pinned ASR muzzle device for optimal recoil control and compliance.
Built on a rugged aluminum receiver, the M4-89 sports a QPQ-treated barrel, A5 buffer system, and Liberty Fighting Trigger for smooth, consistent performance. Outfitted with premium B5 Systems furniture including a B5 Bravo synthetic stock, this rifle delivers comfort and control in any scenario.
The M-LOK handguard and full-length Picatinny rail offer ample real estate for your favorite accessories, while the optic-ready upper allows you to tailor your setup to any mission. Whether you’re running drills or on duty, the M4-89 is built to perform.





