GrovTec’s Thread Protector’s are the perfect choice for protecting your threaded barrel. Available in popular thread pitches and exterior diameters” GrovTec’s Thread Protectors will give your barrel a lifetime of protection and keep your threads in perfect working condition.
GrovTec GTHM246, Thread Protector, Black Oxide Finish, Black, 1/2X28″ Threaded, .625″ Diameter, Fits Pencil Barrels GTHM246