Backup Tactical 223Rem 1/2 x 28 Right Hand Honeycomb Thread Protector Black. The honeycomb pattern is the same material as the back side of your handguard and offers the best heat dissipation of any thread protector on the market. It also offers the best heat dissipation for any threaded accessory. The black nitride finish gives extreme durability and the matte black finish gives Backup Tactical's Backup ReMount a very sleek and modern look. Backup Tactical is proud to stand behind this product and has a solid reputation to uphold. Specifications for Backup Tactical 223Rem 1/2 x 28 Right Hand Honeycomb Thread Protector: Manufacturer: Backup Tactical Color: Black Package Contents: Backup Tactical 223Rem 1/2 x 28 Right Hand Honeycomb Thread Protector Backup Tactical BACKHCOMB-BLK223: 223Rem 1/2 x 28 Right Hand Honeycomb Thread Protector Black