Every saber has technology inside that powers the blade lighting apparatus and effects. Most of our designs come with standardized technology. For the serious collector, you want a an amazing chassis that will elevate your entire collector's experience with a brass core and spinning crystal section with additional LEDs and engravings. Choose this option with any xenopixel version of the supported sabers, and you'll get an amazing saber with an upgraded internal brass chassis. Inside, you'll find a pogo pin core, a 16340 2000mAh rechargeable battery, and compatibility with most removable pogo pin core hilts across our Xenopixel line. This brass replacement core only comes with a Xenopixel board. Engineered to fit seamlessly in any of the below sabers in any Xenopixel or Proffie core configuration. IMPORTANT: This chassis will NOT work in an empty hilt or SN-Pixel sabers. You need an installed Xenopixel hilt for it to work. Crossguards are currently not supported. If your saber core can be hot-swapped then it may be compatible. If it are unsure, just ask us. List of compatible hilts: pending