PSA AR-15 Barrel 7.5" .300 Blackout Pistol-Length 1:7 Nitride - 5165449963

All Palmetto State Armory barrels
Palmetto State Armory PSA AR-15 Barrel 7.5" .300 Blackout Pistol-Length 1:7 Nitride - 5165449963 - Barrel for AR-15 - view 1

Palmetto State Armory

Overview

The PSA AR-15 Barrel is a compact 7.5-inch option designed for .300 Blackout builds, featuring a pistol-length gas system that optimizes performance in shorter configurations. With a 1:7 twist rate, this barrel is well-suited for stabilizing heavier projectiles, making it a reliable choice for a variety of ammunition types. This barrel is commonly found in builds that prioritize maneuverability and versatility, particularly in close-quarters situations.

Specifications

Gas System LengthPistol
Twist Rate1:7
Caliber300 Blackout
Barrel Length7.5
CoatingNitride
FinishNitride

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Build history on GunPartPicker

Builders have added the PSA AR-15 Barrel 7.5" .300 Blackout Pistol-Length 1:7 Nitride - 5165449963 to their builds on GunPartPicker since July 2026. Since April 2026, it ranks #198 of the 1,042 barrels builders have added.

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