Griffin Armament .300 Blackout HEDP AR-15 Barrel - 9.5" - HE95300B Review

About Griffin Armament .300 Blackout HEDP AR-15 Barrel - 9.5" - HE95300B

The Griffin Armament HEDP (High Endurance Dual Purpose) AR-15 barrels are built for long lasting precision. Each barrel is precision machined from 416R stainless steel and Nitride coated. Featuring hand lapped bores for enhanced precision with 300 Blackout. The 5/8×24 threads are precision cut to ensure concentricity when mounting suppressors and the threads are slotted for pinning and welding a muzzle device. The gas port has been carefully engineered to provide optimal reliability whether suppressed or unsuppressed. This AR-15 barrel features a pistol length gas system and medium diameter for rigidity and steps to a thinner diameter after the gas block to reduce weight and improve maneuverability. Polished feed ramps, magnetic particle inspection, air gauged and hand lapping set this barrel apart from the competition. Features: 9.5” chambered in .300 BLK 416R stainless steel and Nitride coated Pistol length gas system Optimally sized gas port for suppressor use 1/8 twist rate Precision cut 5/8×24 threads Includes Primo low profile gas block and hardware Dimpled for gas block install Polished feed ramps Hand lapped and air gauged bore Button rifled Magnetic particle inspected Also included with this 9.5” barrel is the Griffin Armament Primo 416R low profile gas block as well as the hardware needed to mount it. This gas block also features Nitride coating and is drilled for pinning and welding to the barrel. Griffin Armament produces serious use products with exceptional quality at a fantastic value. Designed with real world experience and built in the U.S.A., their product line has the parts you need. They’re built to last a lifetime and backed by their perpetual lifetime warranty.

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