Palmetto State Armory

Overview

The PSA 16" Pistol-Length 300AAC Blackout Upper Receiver is a complete assembly designed for the AR-15 platform, featuring a 16-inch barrel optimized for the 300 Blackout caliber. With a twist rate of 1:8, this upper is engineered to stabilize a range of bullet weights, making it versatile for various ammunition types. The pistol-length gas system ensures reliable cycling, which is crucial for performance in shorter configurations. This upper receiver is commonly found in builds focused on compact versatility and close-quarters effectiveness.