DD® Contract Overrun Upper Receiver Group

In stock


The Contract Overrun upper receiver group is purpose-built for CQB — maximum maneuverability and reliability in tight spots.

The 11.5" Government-profile barrel and Carbine length gas system ensure smooth and reliable cycling while a front sight post — flush with the rail — and an installed rear sight serve as bombproof backups or allow the upper to be run optic-free.

This upper features a completely custom 7-inch DD4 M-LOK rail — an evolution of the tough and trusted MFR rail from Daniel Defense — and offers plenty of space for your gear without any of the extra weight.

Expect the snappy target acquisition, extreme mobility, and legendary reliability CQB operators demand — not to mention everything else that comes standard on a Daniel Defense upper, including an M16-profile bolt carrier group and a Grip-N-Rip charging handle.

This one-of-a-kind upper was engineered, built, and surpassed one of the most rigorous tests in the history of DD.

Now, a limited quantity has been made available to the public. Get yours now.

All NFA rules apply.


Once this part is assembled into a complete firearm, it becomes a regulated item by the National Firearms Act (NFA). Please check with your local and state municipalities for any further regulatory requirements. It is the buyer's responsibility to make sure they comply with all NFA rules and applicable laws.


More Information
Mounting SystemM-LOK
Caliber5.56mm NATO
MaterialChrome Moly Vanadium
Manuf. ProcessCold Hammer Forged
Twist Rate1:7
Muzzle DeviceDD® A2 Flash Hider
Rail SystemDD4 7.0
Gas SystemCarbine
Barrel Length11.5"
Barrel ProfileGovernment
Product Weight3.08 lbs
ManufacturerDaniel Defense
Daniel Defense Satisfaction Guarantee
Guaranteed Satisfaction

All Daniel Defense products carry a 100% satisfaction guarantee against defects in original materials and workmanship. If your Daniel Defense product shows evidence of such defects, Daniel Defense will make every accommodation to fix, repair, or replace your product in the most expeditious manner possible. Daniel Defense does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer's products.

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