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JG 7.62×39 Heavy Barrel – 7.5″- Pistol Length Gas System


Color: Black
Finish: Parkerized
Fabric/Material: 4150 CMV
Cartridge: 7.62x39mm
Barrel Profile: Heavy
Gas Block Journal Size-Día: .750 in (GB Sold separately)
Threads per Inch: 5/8×24
Barrel Twist Rate: 1-10
Barrel Material: 4150 Chrome Moly Vanadium
Flutes: No
Gun Make: AR Platform
Gun Model: AR-15
Gas Block Journal Size-L: 1.9 in
Feed Ramp: .300 Blackout Feed Ramp
Dimpled: Double Dimpled
Weight: 2.100000
Warranty: Lifetime
Please see additional information for recommendations.


Additional Information:

Made in the U.S.A.
All Jacob Grey barrels are guaranteed to give sub Minute of Angle (MOA) accuracy with match grade ammunition (By Manufacturer)
High pressure tested (HPT) and Magnetic particle Inspection (MPI)

The Jacob Grey AR-15 7.5″ heavy parkerized 7.62×39 barrel has a Pistol length gas system with a 1:10 twist rate. Our 7.62×39 parkerized rifle barrels are made from the finest 4150 Chrome Moly Vanadium and precisely rifled for high accuracy. They are then hardened and stress relieved to withstand the effect an AK round can give a barrel. Use a Jacob Grey AR barrel in your next AR15 build and experience superior performance backed by a lifetime warranty against defects!

All finished barrels go through a 100% inspection process. Inspection’s equipment includes CMMs and Air Gauges for the bores as well as visual and machine inspection.

**Jacob Grey recommends an enhanced firing pin and Winchester 123gr ammunition with our 7.62×39 barrels. H3 Buffers and heavy-duty bolt extractors are also recommended in any AR-platform rifle firing this round.

*A barrel that is shorter than 16″ is only for use on a pistol configuration firearm or a NFA registered Short-Barreled Rifle (SBR). All NFA laws apply.

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Standard Equipment

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