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JG 9mm 1/2×36 Thread Barrel – 4.5″



Product Specifications:

Barrel Material: 4150 CMV Steel

Barrel Type: Button Rifled

Barrel Caliber: 9MM SAAMI (9x19mm Parabellum)

Barrel Twist: 1:10

Barrel Length: 4”

Barrel Profile: Light (.675″ at the thinnest cross-section)

Inside Finish: Black QPQ Salt Bath Nitride

Outside Finish: Black QPQ Salt Bath Nitride

Muzzle Thread: 1/2×36″ TPI (Threads Per Inch)

Barrel Extension: AR15 (Will work with any Milspec AR15/AR-9 Upper Receiver)

Integrated feed ramp

Designed to work with both Colt and Glock style AR-9 builds

Specifically designed to complement the Jacob Grey JG-9 Upper receiver.


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9mm lightweight profile barrel made from 4150 chrome-moly steel with a 1-10” twist rate and 1/2×36 thread pitch. Pairs perfectly with JG 4” low profile handguard.


. Before any muzzle device make sure a 9mm round will drop freely through the device center


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