Nerf 12-Dart Super Grenade (Uses CO2/GreenGas)

This is a 3D printable, plunger-activated, 12-dart, Nerf grenade.

To complete the build, you'll need the 3D printed parts and: (1) M4x5mm hex head screw, (1) Army Force 72rd 40mm airsoft grenade, the tips from at least (12) Nerf Elite darts, and Green Gas or CO2 to charge the Airsoft 40mm grenade.

The video that shows assembly and testing is available at: https://youtu.be/1ICOOfrn_Io

If you need something a bit smaller, my 6-dart version of this grenade is available here: http://www.thingiverse.com/thing:2211742

Note: The plunger needs 60-100% infill, the cap needs 35% infill, and the body and plate only require 20% infill.