This was remixed...sort of...from https://www.thingiverse.com/thing:3746568 by jb69.
Redrawing the entire piece to make all the changes was easier than trying to remix the mesh file. Credit for the original design still goes to jb69.

I wanted the ability to use the brass processing bypass without the need to move the swage back-up rod out of the way. It's easy to make the adjustment but I like to make the fewest set-up adjustments possible. So I redrew the item and changed several dimensions including the size of the screw slot. The original was too tight.

I've tested it and it works great. In order for it to clear the swage back-up rod and still kick the brass out...it needs to flex. I don't know how long it will last but at 30 minutes of print time...I'll make more if needed.

I changed the text from Brass Kicker to Br-Ass Kicker because I thought it was more fun. LOL
I uploaded two files. One with the text and one without.

Creality CR-6 SE

No

Yes

0.20

50%

50% infill for added strength and flexibility. More infill may last longer but may be less flexible and not work as smoothly. I have not tried that.

Print with the top side up and use supports, especially with the model with the text.