Looking for a high-quality AR-15 upper receiver assembly that you can rely on? Look no further than the Daniel Defense M4A1 Complete Upper. This complete upper receiver is the same one used on their popular M4A1 rifle, and it’s easy to see why – it’s made with only the highest quality components available.
The barrel is cold hammer forged from the highest quality materials, ensuring that it will be accurate and durable. The RIS II handguards are legendary for their strength and stability, and the M16 bolt carrier group is better than MIL-SPEC. When you put it all together, you’ve got an AR-15 upper receiver assembly that you can count on to perform in any situation.