Palmetto State Armory

Overview

The PSA 7.5" 5.56 NATO Upper Receiver is a complete assembly designed for AR-15 builds, featuring a 7.5-inch barrel that is optimized for maneuverability while maintaining effective performance. The 1:7 twist rate is ideal for stabilizing a range of bullet weights, making it versatile for various ammunition types, while the pistol-length gas system ensures reliable cycling in a compact package. This upper receiver is commonly found in shorter, more agile builds, often tailored for close-quarters applications.