Description
Our upper receivers feature a Thermal Fit barrel seat, ensuring a tight, consistent interface between the barrel and receiver for enhanced accuracy and repeatable performance. Machined from 7075-T6 aluminum, each receiver is built to exacting standards and designed to accept all Mil-Spec components while maintaining seamless compatibility with Mil-Spec dimensioned lower receivers.
Versatile Design:
Designed with end-user adaptability in mind, our upper receivers incorporate a left-side relief cut to accommodate most aftermarket battery assist devices. Whether you’re optimizing for speed, control, or personal preference, this feature allows you to configure your rifle without compromise.
Enhanced Internal Surface Treatment:
We optimize the internal surfaces of the receiver to reduce friction and eliminate unnecessary resistance in the system. This results in smoother operation, less component wear, and increased reliability—especially during high round count or adverse conditions.
By improving how components interface inside the receiver, the system stays cleaner, runs more efficiently, and holds up longer without compromising fit or spec.
Reliable Performance:
Built to perform under demanding conditions, each upper is hand deburred and finished with a hard coat anodized treatment for long-term durability. Every detail is carefully controlled to ensure the receiver is within spec and ready for consistent, dependable function in any application.
Seamless Compatibility:
Engineered around true Mil-Spec dimensions, our upper receivers pair perfectly with both our billet lowers and other Mil-Spec components. The result is a precise fit and reliable function across a wide range of builds.
Proudly American Made:
Like all Mitchell Defense products, our billet AR15 upper receivers are proudly made in America. We are committed to delivering uncompromising quality, precision machining, and performance you can trust.
