Cobra R9 Adder arrow nock
thingiverse
arrow nock for cobra r9/adder 7,5" bolts the size fits perfectly, so just apply a bit of glue to fix the position use ABS Update: you can buy good quality nocks for Corbra Adder/R9 from Aliexpress https://s.click.aliexpress.com/e/_ADW1dL no need to print anymore :-)
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