Airborne Arms Hyperion Series Barrel AR-15 18in Rifle Length .750 Gas Block 6.5mm Grendel 5/8x24 Thread 1-8 Twist 416R Steel Silver Medium. 5mm Grendel AR-15 Stainless Steel Barrel. Airborne Arms built these Rifle Barrels to last through multiple...
Airborne Arms Hyperion Series Barrel AR-15 18in Rifle Length .750 Gas Block 6.5mm Grendel 5/8x24 Thread 1-8 Twist 416R Steel Silver Medium. 5mm Grendel AR-15 Stainless Steel Barrel. Airborne Arms built these Rifle Barrels to last through multiple...