Webwhen disassembling a sig sauer p365 xl, follow these steps: Remove the magazine and ensure the gun is unloaded. Push down the takedown pin located. By the rogue banshee. Need to do a sig p365 or sig p365 xl slide apart. As much as they are the same, the xl does have some differences. In this video i. Webdo not attempt to disassemble your sig sauer firearm beyond the point explained in this manual. Disassembly beyond the instructions in this manual is restricted to a certified. Webdo not attempt to disassemble your sig sauer firearm beyond the point explained in this manual. Disassembly beyond the instructions in this manual is restricted to a certified.