R/C 2.4 KING TIGER, INFRARED TAIGEN 1/16 The King Tiger Ausf B comes with an infrared firing unit and is RTR out of the box. Just add your AAs and you are set! This tank comes with a plastic chassis, metal suspension arms, metal gearboxes (High-Low/4:1/Zinc/58mm/TAG120266), metal drive wheels, metal idler wheels, metal road wheels, metal LED headlight, metal tow hooks, metal gun barrel, metal exhaust pipes, and metal caterpillar tracks. This tank also comes with a 2000mAh battery and charger, LED machine gun, an accessory box, a smoke unit, speaker, and has track and barrel recoil when firing.