The Silent Knight: a Nerf-compatible K'nex crossbow

This is my single-shot Nerf-compatible crossbow made entirely from K'nex, rubber bands, and string. It is designed for range, and can fire almost as far as an unmodified Nitefinder (the only thing I could test against).

For anyone who wants one of their own, the instructions can be found here:
https://www.instructables.com/Silent-Knight-a-Knex-Compound-Crossbow/