1/2" - 9/16" Conversion Adapters

Convert your 5/8-24 RH .308, 300 BO, and .30 calibre Muzzle Devices, shrouds and accessories to your newer Ruger .308 barrel threads (confirm your barrel threads first. Not all Ruger .308's are threaded 1/2-24 RH) with this one-of-a-kind 1/2-24 to 5/8-24...