PSA 16" Mid-Length 5.56 NATO 1:7 Nitride 13" Lightweight Hex M-LOK Upper With NIB BCG & CH

Palmetto State Armory

Overview

The PSA 16" Mid-Length Upper Receiver is a complete assembly designed for the AR-15 platform, featuring a 16-inch barrel chambered in 5.56 NATO. This upper utilizes a mid-length gas system, which can enhance reliability and reduce recoil, while the 1:7 twist rate is optimal for stabilizing a wide range of bullet weights. Builders often choose this upper for versatile setups that require a balance of maneuverability and performance.