This one is called the "Nerf Elite Disruptor." Lots of springs, levers, sliders, cams, and nerf darts! Freeback/critiques are always welcome - please share in the comments below.
This video has been dubbed in over 20 languages, you can change the audio track language in the Settings menu (click the gear icon in the lower right hand corner of the video).
See my blog post about this video:
Special thanks to my $5+ Patreons:
Karen King
Axel Nieves
Todd Eichel
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Music:
"Inevitable" By Diamond Ortiz (Youtube Audio Library)
Made with Blender 2.79b
Here is some of the gear that I use for animation: