Infinite Product Solutions 1/2-24 - 5/8-24 Thread Adapter Black Oxide. This adapter allows for the seamless attachment of 5/8-24 threaded accessories to your 1/2-24 threaded barrel offering enhanced flexibility and convenience. Precision manufactured for durability and performance this adapter is ideal for the .30-06 SPRG Ruger Guide Gun. Specifications for Infinite Product Solutions 1/2-24 - 5/8-24 Thread Adapter: Manufacturer: Infinite Product Solutions Color: Black Oxide Finish: Smooth Threads per Inch: 5/8x24 Gun Make: Ruger Weight: 1.6 oz Last Chance: Yes Width: 0.79 in Height: 0.79 in Length: 1.47 in Caliber: .308 Winchester Features of Infinite Product Solutions 1/2-24 - 5/8-24 Thread Adapter Converts 1/2-24 threaded barrels to U.S. standard .30 cal threads 5/8-24 Precision manufactured Common rifle thread length Wrench flats for easy and secure installation Corrosion resistant Converts to US industry standard 5/8-24 Package Contents: Infinite Product Solutions 1/2-24 - 5/8-24 Thread Adapter Infinite Product Solutions 1224-5824-BS: 1/2-24 - 5/8-24 Thread Adapter Black Oxide