From Griffin Armament: Griffin HEDP™ Barrels are precision-machined from 416R SS and feature a .223 Wylde chamber for exceptional accuracy and durability. We ran one of these barrels 100% suppressed to ~47,000 rounds on our test gun with zero baffle strikes, and the rifling remained intact. The barrel was ultimately retired due to wear on the extension lug.
.750″ gas block journal
Mid-length gas, 1/8 Twist
Black nitrided and 5R rifling
Suppressor optimized gas ports
.625″, 1/2×28 industry standard threads
