The California Compliant M4 Patrolman’s™ Flat Top rifle from Bushmaster Firearms®, the ultimate hard-use duty rifle that is also perfect for sport shooting and recreation. Handcrafted in America and Proven® to perfection, this rifle is built with the highest quality materials and designed to meet the most demanding standards.

This rifle boasts a 16″ barrel made of 4150 CMV with a Salt Bath Nitride finish and a twist rate of 1:7, ensuring superior accuracy and reliability. Equipped with a Midwest Industries Combat Rifle flip-up rear sight, you can easily and quickly adjust your aim for maximum accuracy.

Built to last, the M4 Patrolman’s™ Flat Top CA has a carbine-length gas system and features a 7075 Forged XM15-CA™ Lower Receiver and a 7075 Forged A4 Flat Top Upper Receiver. The Salt Bath Nitride Bolt Carrier Group and MPI Tested Bolt ensure that this rifle can withstand heavy use without sacrificing performance.

With a weight of just 6.2 pounds (without the magazine) and an overall length of 32 – 35.5 inches, this rifle is lightweight and easy to maneuver, making it perfect for a wide range of activities. It comes with an A2 Pistol Grip, Mil-Spec Trigger, A2 Flash Hider, and an F-Marked A2 Front Sight, providing you with the essential features you need for an outstanding shooting experience.

Finally, the M4 Patrolman’s™ Flat Top CA is equipped with a DFM® magazine, ensuring that you have a reliable California compliant magazine. Whether you’re looking for a duty rifle or a reliable firearm for sport shooting and recreation, the M4 Patrolman’s™ Flat Top CA is the ultimate choice for anyone who demands the very best.

Why is this California-compliant

Keeping with the tradition of offering legal firearms to the American People, Bushmaster® has created variations on our most popular firearms, meeting California Firearms Laws.

Every California Compliant Bushmaster® is equipped with a DFM® 10rd magazine, and the lower receiver model is XM15-CA™. In addition, every rifle shipped to a Federal Firearm Licensed dealer located in California has California DOJ approval.

The DFM® magazine requires disassembly of the action to remove the magazine. This means no permanent alterations are needed. The limiting tabs prevent release through the bottom of the magazine well and can only be removed from the top when the upper is tilted out of the way.

Installation requires removing and reinstalling your bolt catch.