Mossberg 500 or 590 1.75 ejector adaptor
thingiverse
This is for the Mossberg 500 or 590 Shoskwave pump action to use when using 1.75 shells. I used the flex pla, I tried pla and the fit had to be perfect. the flex is forgiving but harder to trim up unless your exacto is real sharp. I did upgrade to a Micro-Swiss Direct Drive Extruder for CR-10 so I'm not sure you will be able to push flex through in the stock setup. Also if your slicer scales it to 10000% set it at 2450% I added a cleaned up version that I have not tried yet but I figure it might be better. It is also scaled to be correct in the slicer.
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