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SKU: CA-10011-BLK
The California Compliant M4 Patrolman's™ Flat Top rifle from Bushmaster® Firearms is the perfect choice for hard-use duty, sport shooting, and recreation. Handcrafted in America, this rifle is Proven® to perfection with a 16" barrel, carbine-length gas system, and a 7075 Forged XM15-E2S™ Lower Receiver. Equipped with a Midwest Industries Combat Rifle flip-up rear sight and a DFM® magazine from Franklin Armory®, this rifle delivers superior accuracy, reliability, and performance.

Why we made BUSHMASTER® M4 PATROLMAN'S™ Flat Top - CA

Introducing 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-E2S™ 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 from Franklin Armory®, 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.

Features & Specifications

5.56 NATO / .223 REM
Barrel Length:
Barrel Material:
4150 CMV
Barrel Finish:
Salt Bath Nitride
Barrel Thread Pitch:
½ x 28
Twist Rate:
Weight w/o Magazine:
6.2 LBS
Overall Length:
32 – 35.5”
Gas System:
Carbine Length
Lower Receiver Material:
7075 Aluminum Alloy
Model Marking:
Upper Receiver Material:
7075 Aluminum Alloy
Upper Receiver:
A4 Flat Top
Bolt Carrier Group Finish:
Salt Bath Nitride
MPI Tested
M4 Heat Shields
Mil-Spec Trigger
BFI® M4 Carbine Stock
A2 Pistol Grip
Trigger Guard:
Mil-Spec Trigger Guard
Safety Selector:
Mil-Spec Selector
Muzzle Device:
A2 Flash Hider
DFM® Aluminum
Equipped Magazine:
10 Round
Front Sight:
F-Marked A2 FSB
Rear Sight:
Midwest Combat Rifle
Proudly Made In:

Important Information

Firearms Shipments:
In accordance with federal regulations, firearms may only be shipped to a licensed dealer. To avoid any delays in delivery, kindly ensure that you provide the FFL Dealer's information in the Shipping Directions when placing your order. If you do not provide the information with your order, we will reach out and request you provide us with your dealer's information to obtain a copy of their FFL. Once we receive the FFL, we will begin processing your order, and the lead time will start from that point. Please feel free to reach out to us at FFL@bushmaster.com if you have any queries or concerns regarding this proces.

Lower Receivers Shipments:
Lower receivers are also considered firearms under federal regulations and require an FFL (Federal Firearms License) prior to shipment. Therefore, it is important to ensure that your FFL dealer sends us a copy of their license, along with your name and order number via email. We appreciate your attention to this matter as it helps us ensure a smooth and timely delivery of your order. If you have any questions or concerns about this process, please do not hesitate to contact us at FFL@bushmaster.com

Magazines Shipments:
The magazine capacity of the firearm will depend on the jurisdictional restrictions of your state of residence. We want to ensure you receive a product that complies with your state's regulations.

Shipping to Alaska or Hawaii:
If you're shipping to Alaska or Hawaii, please be aware that there may be additional shipping charges. If applicable, we will contact you at the time of shipment to discuss additional costs. As always, your satisfaction is our top priority.

Important Information:
Warning: This product can expose you to chemicals, including lead, known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to - https://www.P65Warnings.ca.gov