PSA 8.5" Pistol-Length 5.56 NATO 1/7 Nitride 10.5" Lightweight M-Lok Upper - With BCG & CH

Overview

This upper receiver assembly features an 8.5-inch barrel made of 4150V chrome moly vanadium steel with a nitride finish and a 1:7-inch twist. The assembly includes a pistol-length gas system, a low-profile gas block, and a PSA 10.5-inch lightweight M-Lok rail. The upper is a forged 7075-T6 A3 AR-style receiver that is hard-coat anodized black. The bolt carrier group utilizes a bolt crafted from shot-peened Carpenter 158 steel, with the gas key secured by grade 8 fasteners and staked to military specifications. The barrel is equipped with a fluted flash can, machined from 6061 aluminum with a 1/2-28 thread pitch and black hard-coat anodization. This device is designed to direct muzzle gases and flash forward away from the shooter.

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