塞尔达士兵之弓

Full size Soldier's Bow from Zelda Breath of the Wild.
Some of the fit is very tight so you'll probably need to sand down the shaft and guards to fit snugly. Print the inner and outer guards with the flat split down and use support to hold them up.
Use a bit of 5mm threaded rod, or a 5mm bolt with the head cut off to hold the bits of the shaft together.
(added another photo and the parts for the wrapping on the back of the shaft)