The Aero Precision APRH308186 Complete .308 Win / 7.62x51mm NATO M5 Platform upper receiver is a fully assembled, drop-in solution for builders and shooters looking to complete an M5 rifle build in one of the most versatile rifle cartridges available. Built on Aero's M5 platform—designed specifically for the larger .308 Winchester and 7.62×51mm NATO case—this upper arrives ready to mate with a compatible lower receiver, letting you finish your build without additional machining or part sorting.

The black nitride steel construction delivers excellent corrosion resistance and durability in the field or at the range. A complete upper means the barrel, bolt carrier group, charging handle, and all internal components come assembled and headspaced, saving you hours of build time and the need for specialized tools. This is the choice for shooters who want a proven, factory-quality upper without the premium price of a complete rifle.

Aero Precision's M5 platform has earned a solid reputation among precision rifle builders and hunters alike. Whether you're planning a long-range target rig, a tactical training build, or a hard-use hunting rifle, this upper gives you a platform known for accuracy and reliability. Pair it with an appropriate M5 lower receiver and buttstock assembly to complete your rifle.

The Aero Precision APRH308186 Complete .308 Win / 7.62x51mm NATO M5 Platform upper receiver is a fully assembled, drop-in solution for builders and shooters looking to complete an M5 rifle build in one of the most versatile rifle cartridges available. Built on Aero's M5 platform—designed specifically for the larger .308 Winchester and 7.62×51mm NATO case—this upper arrives ready to mate with a compatible lower receiver, letting you finish your build without additional machining or part sorting.

The black nitride steel construction delivers excellent corrosion resistance and durability in the field or at the range. A complete upper means the barrel, bolt carrier group, charging handle, and all internal components come assembled and headspaced, saving you hours of build time and the need for specialized tools. This is the choice for shooters who want a proven, factory-quality upper without the premium price of a complete rifle.

Aero Precision's M5 platform has earned a solid reputation among precision rifle builders and hunters alike. Whether you're planning a long-range target rig, a tactical training build, or a hard-use hunting rifle, this upper gives you a platform known for accuracy and reliability. Pair it with an appropriate M5 lower receiver and buttstock assembly to complete your rifle.