This is based on two other designs that I combined to make this custom design. I liked the blade of the one design but preferred a Karambit-style grip.

Print with support, it will be minimal support needed mostly for the handle and very little for the blade.

Printed with PLA or PLA+, but using ABS or TPE could make a more flexible knife.

I printed using the tri-hexagon infill pattern and at 90% infill, for some extra strength.

I printed the Airsoft_Knife_Main2, Airsoft_Knife_Pins, chef_L, and chef_L files as a single print, which took around 11 hours at 60 mm/s print speed.

After printing, the grips, blade and pins are tight-fit, and with very little sanding and elbow grease, it can be put together pretty well. I used very little superglue.

Credit goes to:
https://www.thingiverse.com/thing:3286370 (I included the files for the blade's scabbard)
https://www.thingiverse.com/thing:4965540 (Used this knife's grip/handle)

Creality

Ender 3

Doesn't Matter

Yes

0.2mm

90%