Daniel Defense manufactures the highest quality complete AR15 upper receivers on the market today!
Daniel Defense M4 URG MK18 Black
Daniel Defense manufactures the highest quality complete AR15 upper receivers on the market today! Every Daniel Defense M4 URG MK18 Black is painstakingly hand assembled, quality assurance tested, and test fired to ensure that the highest quality product makes it to the hands of our customers. The Daniel Defense upper comes complete with bolt carrier group and charging handle, 10.3″ Cold Hammer Forged Barrel, RIS II MK18 Rail System, and Daniel Defense low profile gas block.
If you’re looking for any of our other Daniel Defense MK18 products, try this page.
Cold Hammer Forging of barrels has been known for decades to produce the most accurate, longest lasting rifle barrels obtainable. The Cold Hammer Forging of barrels is accomplished through intense hydraulic pressure applied at opposing angles by carbide steel hammers. During the hammering process, a mandrel is inserted into the bore while the carbide steel hammers shape the barrel around the mandrel creating the chamber, the lands, and the grooves. In addition to the aforementioned benefits, the Cold Hammer Forging process creates a defect free bore and the most consistent chamber possible.
Please note the Rail is Black!!
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.
MATERIALS & CONSTRUCTION