PSA 20" Rifle Length 1/7 Nitride 15" Lightweight M-LOK Upper - No BCG & CH

Palmetto State Armory PSA 20" Rifle Length 1/7 Nitride 15" Lightweight M-lok Upper - No BCG & CH - Upper Receiver for AR-15 - view 1

Palmetto State Armory

Overview

The PSA 20" Rifle Length Upper is a complete assembly designed for precision and performance, featuring a 20-inch barrel chambered in 5.56 NATO. With a rifle-length gas system and a 1:7 twist rate, this upper is optimized for stabilizing heavier projectiles while maintaining reliable function. This configuration is commonly found in longer-range builds that benefit from enhanced accuracy and reduced recoil.

Specifications

SKU51655191732
AssemblyComplete
Gas System LengthRifle
Twist Rate1:7
Caliber5.56 NATO
Barrel Length20
PlatformAR-15

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Build history on GunPartPicker

Builders on GunPartPicker first added the PSA 20" Rifle Length 1/7 Nitride 15" Lightweight M-LOK Upper - No BCG & CH to a build in March 2026.

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