Zebra F 402 pen grip replacement

I really hated the rubber grip that came on these pens but I love these pens because of the steel parts! So I designed a simple replacement grip tube.

I highly recommend printing this in Fine detail with a size below 0.18mm. I also place the brim 0.5mm away from the print.
Select aligned or back seams otherwise you have bumps all over the grip. (You may prefer this actually).