For strength there are some decent GID PETG options. Glow for all these is pretty good with regards to intensity but poor for duration.
Be ready to replace your brass nozzle a little sooner than you thought. Using a oxbidian nozzle and it seems to take the beating well.
PETG's issue in this particular application is layer strength, wherein it's difficult to top PLA except with some semi-exotic and rather hard to print materials like polycarbonate. Both the screws and the blade carrier in my design rely on layer adhesion not failing for durability. Otherwise honestly the parts are all pretty low stress other than I guess potentially the pocket clip.