@shizutori you can try and contact Razer to see if they can help you with parts [https://support.razer.com/contact-support/?c=us|on here]. Other than that you are bound to either scour places like ebay.com or similar. If that does not get you what you need I would check for another headset of any kind and see if you can harvest the microphone boom from that and make it fit your set. This guide [guide|87653] should help with the disassembly.