Im confused. I have ran across two versions of assembling the front endcaps. I do believe I have a newer model. V 2.6. My kit came with three circles and one with nubs (for each front end cap) four in all. I also opted for the newer batteries and have therefore put together the battery adapters. So now my question is.... do I use the four pieces for an endcap or just three?. I comprehend how using and extra piece with he battery adapters might make the whole battery assembly/unit too long to fit properly in the tube.
In step 77 on the dozuki, you should be using those 3 pieces indicated in the image for the front end caps. If you have extra large circular piece without nubs, you don't have to use those.
Let us know if you have any other questions!