Hey guys. I've purchased a replacement GB for my SAR-1 so that I can have a functional bayonet lug. Most of the tutorials I've seen online show the process done with the barrel uninstalled. I'm hoping that I can do it without disassembling the gun that much. I'm thinking just pop off the FSB and GB, and then press the new ones on, but having never done the pressing work before, I'm not sure if that's going to be a huge hassle without the barrel removed? Any info and tips are greatly appreciated!