M5 Complete Factory Upper 16"

The Aero Precision M5 Complete Upper is a factory-assembled .308 Winchester upper receiver built on a forged 7075-T6 aluminum receiver with M4 feed ramps and a DPMS high-profile tang. The 16" barrel is 4150 Chrome Moly Vanadium steel with a QPQ corrosion-resistant finish, 1:10 twist rate, and mid-length gas system. It ships with a low-profile gas block, mid-length gas tube, forward assist, and port door installed.

The upper is compatible with DPMS-pattern AR-308 lowers and accepts standard .308/AR-10 bolt carrier groups and charging handles, which are sold separately. The barrel is HP and MPI tested, and the receiver features laser-engraved T-marks for easy accessory indexing.