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U.S. Arms Upper Receiver

Stripped upper receiver, anodized black.



U.S. Arms (USAC) AR-15 Upper Receivers are the most durable, lightweight uppers on the market. This AR-15 stripped upper receiver was engineered to allow significant weight reduction without sacrificing strength. The meticulous details incorporated during the machining and manufacturing process allow for a completely unique product. The face of the receiver is perfectly squared from the CNC process and aligned with the receiver thread. This means that the barrel extension and receiver face will mate up with complete precision without the possibility of a “High or Low side”. During extended firing on the range this will ensure that your shot group will stay centered on the target. This AR-15 upper truly has it all – great looks, dependability, accuracy, and a lightweight composition.

The U.S Arms lower receiver, like the upper receiver is a custom work of art on a production scale! This lower receiver is great for the first-time AR owner looking to own the most accurate AR platform on the market or for the seasoned enthusiast looking to add another custom AR-15 to the arsenal. The high-quality anodized finish or Cerakote finish of this receiver allows for corrosion resistance, easy upkeep, and fade resistance. This will ensure your AR-15 is not only operational, but looks great for years to come. The U.S. Arms lower receiver will fit any AR-15 upper receiver on the market and tighten your shot group in the process.

The U.S. Arms AR-15 Upper Receiver will produce a more accurate firearm. Coupled with USAC’s proprietary Cam-Lock lower, you will not find a tighter receiver set on the market, which is why we claim that we are “Home of the World’s Tightest Receivers”. This AR-15 upper  has a lightweight continuous picatinny rail to attach a multitude of sights and scopes. You can further enhance your rifle’s accuracy when you combine muzzle attachments such as the U.S. Arms M-905 Talon Muzzle Brake with a U.S. Arms Upper Receiver. This is a great addition to the upper receiver for improved precision and accuracy.

Take down and pivot pins are the industry standard length of 6.250 inches. Our upper and lower receivers are compatible with all Mil-Spec AR-15 receiver groups such as  DPMS, Bushmaster, Colt, Daniel Defense, Palmetto State, and many more.








Product Benefits

The design of our upper receiver fits right in with our motto of “Lightweight, Accurate, Durable”

Details and Build Materials

All U.S. Arms upper receivers are machined from one solid billet of 7075 aircraft grade aluminum adding to the rigidity and durability of the design.