Please Note: This upper assembly has a barrel less than 16” in length. These uppers are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law.
The Daniel Defense 10.3″ MK18 Complete Upper is the perfect option for anyone looking for a high-quality, reliable upper for their AR-15. This complete upper is the same one used on their MK18 short barreled rifle and MK18 pistol, so you know you’re getting a top-notch product. The cold hammer forged barrel and RIS II handguards are both produced in-house, ensuring that you’re getting the best possible components. The M16 bolt carrier group is also better than MIL-SPEC, making this one of the best uppers available on the market today.