Palmetto State Armory

Overview

The PSA 10.5" Pistol Length 300AAC Blackout Upper is a complete upper receiver designed for AR-15 platforms, featuring a 10.5-inch barrel with a 1:8 twist rate ideal for stabilizing a wide range of bullet weights. The pistol-length gas system ensures reliable cycling with subsonic and supersonic ammunition, making it a versatile choice for various shooting applications. This upper is commonly found in builds that prioritize compactness and maneuverability while chambered in 300 Blackout for both suppressed and unsuppressed shooting.