K'nex Grenade 2019 the K'nade By Kyle_M in LivingLEGO & K'NEX58422Save PDFFavoriteIntroduction: K'nex Grenade 2019 the K'nadeBy Kyle_MFollowMore by the author: This design is easy to build, load, and use. Upon impact the grenade arms spring open lauching 40 K'nex spacers from wall to wall. I hope you enjoy this build as much as I do. Step 1: BuildStep 2: Size 64 RubberbandsStep 3: Demonstration