It's the turret for KillerK's gun! The gun is easy enough to build from his slideshow but a lot of people struggled with the turret, so here it is! The TR36 turret is built in the same way, but twice as big!
I have all the necessary permissions. Credit to BakenBitz for the 18 shot concept and KillerK for the design.
Step 1: Build it
In picture number 1, I have added KillerK's new mod. It will replace the regular ram locks with beige connectors. The only difference it makes is the fact that they are easier to replace if one breaks, so don't worry if you don't have enough pieces! To find out which dark grey connector to replace look at picture 4, the dark grey connector second from the right is what you should replace.
Picture 1 and 13 are by KillerK
Some pictures are repeated at different angles, so bear that in mind. You should be able to tell which ones.