Ar-15 Backup Buffer

This is a buffer for the ar-15. It's intended as a backup or a test buffer. It is not compatible with traditional weights due to needing to make the walls of the base thicker to withstand the use.
After printing, I filled the inner core with hot glue to supply support and a cushion on the tail.

It is tested and it works as-is, so far. I wouldn't expect it to last forever, nor would I rely on it for anything serious. This is for science purposes only.