AR15 Style Buffertube for Nerf, Airsoft, Paintball(Step and Stl)

This is a PROTOTYPE buffertube I cooked up from some basic specs for a personal Nerf project. I want to share it for use in other projects, IE use it for what ever you would like, with the exception of real AR15s, as this is not intended for use with real firearms, it is not built to handle that amount of force.

I have not gotten the chance to test this out, so please if there are any issues post in the comments and I will fix as quickly as I can.

You should in theory be able to print this without supports.

UPDATE: Added a step version

Disclaimer: This is only intended for Nerf, Paintball, Airsoft, and other low pressure applications. I will not be testing this on anything that goes boom if you get my meaning.