Palmetto State Armory

Overview

The PSA 11.5" Carbine-Length 5.56 Upper Receiver is a complete assembly designed for the AR-15 platform, featuring an 11.5-inch barrel that provides a balance of maneuverability and accuracy. With a carbine-length gas system and a 1:7 twist rate, this upper is optimized for stabilizing a wide range of bullet weights, making it suitable for various ammunition types. Builders often use this upper in short-barreled rifles or compact builds that prioritize close-quarters performance.