CMMG Endeavor Mk4 Semi-Automatic Centerfire Rifle

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CMMG Endeavor Mk4 Semi-Automatic Centerfire Rifle for sale | Buy CMMG Endeavor Mk4 Semi-Automatic Centerfire Rifle Online

There’s a world of options when it comes to AR15s, and for those that want to reach out to further targets or hunt with 5.56, the 18-inch ENDEAVOR Mk4 chambered in 5.56x45mm is an awesome choice. Despite all the different caliber offerings available today for AR15 pattern rifles, 5.56x45mm still stands as one of the most popular.

Built on our Mk4 – AR15 platform, this ENDEAVOR can make use of just about any AR15 compatible component, like custom trigger groups, and utilizes a nitride-finished 18-inch 416 stainless steel barrel for enhanced ballistic performance.

Each CMMG ENDEAVOR rifle is purpose-built for long-range performance, with everything from the Magpul MOE rifle stock to the ZEROED muzzle brake, and every part in between selected for its utility to the avid marksman.

The EML 15 handguard maximizes customization potential. M-LOK attachment slots at the 12, 3, 6, and 9 o’clock positions give you plenty of real estate to mount accessories, while the Picatinny rail sections allow for easy and solid mounting points for sights and accessories.



  • Extended Magazine Release Button
  • Polymer Dust Cover
  • Ambidextrous Safety and Charging Handle

Made In United States of America

WARNING: Cancer and Reproductive Harm –


Product Information

Cartridge 5.56x45mm NATO
Capacity 30 Round
Weight 7 Pound
Overall Length 37.8 Inches
Barrel Length 18 Inches
Twist 1:7
Threads 1/2″-28
Hand Right
Youth No
Action Type Semi-Automatic
Stock Type Pistol Grip
Stock Material Synthetic
Stock Color Coyote Tan
Trigger Type Mil-Spec
Safety Ambidextrous Thumb
Threaded Muzzle Yes
Barrel Finish Matte
Front Sight None
Rear Sight None
Frame Material Aluminum
Muzzle Device Muzzle Brake
Scope Included No
Frame Finish Cerakote
Magazine Style Detachable
Fluting No
Country of Origin United States of America
Included Mounts No

Delivery Information

Must Ship to FFL Dealer Yes
Shipping Weight 12.000 Pounds


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