The Tavor SAR in 9mm (TSB17-9) is uniquely convertible to 5.56 NATO. - This caliber conversion kit includes: - 18 Cold Hammer Forged Barrel CrMoV Steel with a 1:7 RH Twist - A2 Flash Suppressor - Left Hand Bolt - Complete Bolt Bolt Carrier and Recoil Assembly - Barrel Wrench - 5.56 NATO Deflector - Deflector Frame - One Black Magpul PMAG Gen M3 30 Round with Window