Long term lurker here, just joined the group as I have an LED Lenser MT7 that, despite still going strong after a decade of use, I have decided to update to something
LED LENSER Universal Mounting System P7, T7, B7, M7, MT7, Hokus Focus, V2, V6 L5 | eBay
Ledlenser M7R.2 | Advantageously shopping at Knivesandtools.com