Palmetto State Armory

Overview

The PSA 8.5" Pistol-length 5.56 NATO Upper Receiver is a complete assembly designed for the AR-15 platform, featuring an 8.5-inch barrel that offers a compact profile while maintaining the versatility of the 5.56 NATO caliber. Its pistol-length gas system enhances reliability and ensures smoother cycling, while the 1:7 twist rate accommodates a wide range of bullet weights, making it suitable for various ammunition types. This upper receiver is commonly used in short-barreled and pistol builds, appealing to those looking for a lightweight and maneuverable option.