Didn't feel like buying the adapter attachment and decided to make this. This is a great fast print but be weary it is 3d printed and unless printed in a stronger filament it is very brittle and can break when taking the suppressor/whatever you attached off.
P.S. This is not the g-spec model this is the 20mm CCW to 14mm CCW for standard Suppressors/Tracer Units
Update: Modeled the appropriate thread pitch so it has a less likely to snap with the suppressor/Tracer Units

Creality

CR-10

No

No

.2

100