ATI Alpha Maxx polymer receiver set with patented over-molded metal inserts at pressure points and locking hammer/trigger pin screws for enhanced durability and reliability.
The ATI Alpha Maxx represents a thoughtful approach to modern rifle construction, combining polymer engineering with strategic metal reinforcement where it matters most.
This combo includes both lower and upper receivers in black, along with necessary screws for assembly. Whether you're a seasoned builder or tackling your first build, the Alpha Maxx provides a solid foundation for a reliable rifle platform.
ATI's engineering focuses on the areas that actually matter — where pressure and stress concentrate during firing. The result is a receiver set that performs consistently while keeping your build cost-effective.