QPQ corrosion-resistant finish provides superior durability in harsh environments
QPQ-coated M4 feed ramp extension enhances feeding reliability and corrosion-resistance
The 9-position A5 buffer system with Sprinco green spring offers adjustable recoil management
The Liberty charging handle with a high gas shelf provides smooth and reliable operation
The Liberty fighting trigger ensures a consistent and dependable trigger pull
Steel M89/DriveLock barrel nut ensures a secure and stable barrel fit

Features

Introducing the M4-89, a pinnacle in our lineup of combat rifles. Crafted with a precision combat-grade barrel, advanced A5 buffer system, responsive Liberty Fighting Trigger and ergonomic B5 furniture, the M4-89 sets the standard for performance and durability. At Sons of Liberty Gun Works, we believe in transparency: it's not just about what a rifle company says, but what they don't say. Below, explore the full specifications of the M4-89. Designed to excel under prolonged, demanding conditions, our firearms are built with uncompromising quality and integrity.

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Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Magazines will be removed from firearms when shipping to states with magazine capacity restrictions.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).