AR15 7.62×39 caliber 1×9.5 twist 18″ barrel standard carbine profile with NGE extension, 416R stainless steel Caudle 7 land polygonal rifling and 5/8x24tpi threads.
This barrel requires a .750 gas block.
This barrel requires a 7.62×39 AR15 bolt and 7.62×39 AR15 firing pin.
Expected Shipping date will be from 5 to 10 weeks.
Our research led us using 7 land polygonal rifling to compensate for harder alloys in non US produced ammunition which we expect our customers will be shooting. The larger rifling will give a longer barrel life.