This is a 3D model of the Estes PNC-80BB nose cone that is designed to fit Estes BT-80 airframe tubing.

There are three files you can download. One is of the nose cone, one of the nose cone without the shoulder, and the third is the end cap which has a 4mm hole in it to allow you to add a screw eye or eye bolt.

Estes kits that use this nose cone:

Kit# 2018 Super Big Bertha
Kit# 2038 Alien Space Probe
Kit# 2093 Broad Sword
Kit# 2139 Fat Boy
Kit# 2165 Super Big Bertha (re-release)
Kit# 9719 Pro-Series II Super Big Bertha

https://www.thingiverse.com/thing:4689948