Strike Industies AR Barrel Thread Protector .5x28 tpi 6061-T6 Aluminum Blue Strike's Barrel Thread Protector is a machined aluminum thread protector that adds a degree of customization and aesthetics to protect your crown and threads…See More Details Type: Thread Protector Model: AR Style Material: 6061-T6 Aluminum Thread Pattern: .5x28 tpi Finish: Blue Hardcoat Anodized
