Shoot half-length worker darts with the MK18!
I'm using the blaster like a regular front-loader, not with shells as planned by MeakerVI. Therefore, I don't need to carry around too many shells, and so I don't care about how bulky they are. I chose to make my single-shot shell as wide as the original triple-shot shell - it looks much cooler this way!
I've added a modified rail dart clip as well - it needs to be a little wider for WORKER darts.