I just watched Walcom S7's video on the 3d printed CO2 Nerf conversion kit for the Crosman Vigilante and I fell in love with the idea. Unfortunately, the publicly available version of the kit is rather lackluster compared to the kit Walcom showed off in the video. This model attempts to rectify that.
To create this version of the barrel, I simply grabbed a model of the Last Word off of Thingiverse and added it to the existing barrel system while adjusting scale for best fit and look, I have not tested this model, but it should work just fine with the cylinder included in DevilZmods' model. Let me know what you think, and please post pictures if you successfully print this out!