FGC-6: FGC-9 MKII AR buffer tube thread in model replica
cults3d
you could use the original FGC9 version but this would need the real AR buffer tube to complete. but saves on print time and materials... https://www.printables.com/model/192633-unw-fgc9-fgc6-mkii-or-mki-thread-in-ar-buffer-tube this replica model is fully 3d printed made to look like the real version. I would print this solid. in a 0.2 layer hight
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