These are recreations of the old Centuri Engineering PNC 51, 54, and 55. These fit the Centuri ST-5 body tube like is practically the same as the the Estes BT-5. I added the bonus of a cap with an eye which didn't exist with the original nose cones.
pnc51.stl | 240.2KB | |
pnc54.stl | 166.9KB | |
pnc55.stl | 267.3KB | |
pnc5xcap.stl | 573.9KB |