Dummy 13 - Blaster Arms! (Cánh tay súng đại bác)

Looking at all the Dummy 13 addons available made me feel like a kid picking out cool new parts for a LEGO Hero Factory set as a kid, so I wanted to add to the mix one of my favorite parts of those sets - HUGE ARM CANNONS! Megaman, Bionicle, Iron Man, 40K Dreadnought, pick your poison. There's something here for everyone :)

Currently there are four to choose from - a quad-barreled blaster, a “flamethrower” with a fluid tank, a really long shotgun, and a railgun.

READ THIS: YOU NEED TO PRINT SUPPORTS FOR THE LITTLE BIT AT THE END WHERE THE ARM ATTACHES

Everything is designed to mostly print as-is, but the little bit that isn't attached to the plate will need some type of support. I tried a design where it was all flat, but it came out a bit too uniform and looked kind of odd.

I'm always open to ideas, if anyone has any other ideas for a blaster design, let me know! I'll see what I can do if it's not too much work :)