The Sypranic 8 round Revolver V2 has been published (for a while actually) and is recommended.
the upgrade includes a functioning true trigger mechanism.
it can be found here; http://www.instructables.com/id/Sypranic-8-round-Revolver-v20/
modeled (or trying) from the Colt Single action army revolver and modern from the Colt Python. This gun lacks an auto revolve or a true trigger, I don't trust triggers on this that well for it your off in the cylander you may damage it. Also sorry revolver fans but it dose not have a hammer...
OK enough storys time for the stats/flaws/strengths
1)sometimes a bullet gets in the way of the cylinder preventing you to turn it until you push it back in. - easily fixed
2)dose not have a normal block trigger. - Chamber trigger?
3) 2 handed not including bolting it back (you will see what I mean for flaw 2 and 3 on the 4th page)
2)smaller then a mag gun with the same amount of shots. - with maybe exceptions of new ones with mags in handles (idk yet)
3)cheap/mercy on new builders or people with not many pieces. yet is still good for experienced builders!
4) first of kind to use this kind of cylinder idea.
5) no way to jam if built right and nothing is in/mis shappen the barrel.
Step 1: Cylinder
Pic 1) gather 8 white rods and 36 silver spacers.**Note** (TY Neo!) you can use Pen bodys! (just find a pen that fits a knex rod in it, take out the point and pen in tube) then pile 4 spacers on one white rod. - I would not suggest using blue spacers due to they can easily get out of place, and cause more friction
SUGGESTION - try to gather the spacers before hand. and check for friction, if a rod does not slide easily through then you should not use that spacer for the chambers, (maybe the middle cause it does not matter for nothing needs to slide in and out, for its just for spining).
Pic 2) get some duct tape and rap around one or twice the ammo cartridge **do not! tape the edges down!! **PEN USERS!** dont tape the silver conectors but skip to Pic 6!
Pic 3) it should look like this! (if does yay!)
Pic 4) "trim" the sides so that they are equal to the end of the silver spacers (little photographers note the I am holding the camera and the tube in picture not anything else)
Pic 5) this is how it should about look like when done from trimming
Pic 6) build a snowflake with blues side connected and slide the cartridge into there, follow the previous steps and make 8 more and put all on there except for the last one. ***PEN USERS*** use the 4 silver spacers as a mesuring tool and mark with a sharpy to how high the spacers are, then cut them there! it will show on pic 10!
Pic 7) will look like this, now tape all around it once or twice and trim it. ***pen users*** must take out the silver spacers before this step!
Pic 8) the 9th one will become the center (mine is a little sloppy) but wrap it around with duct tape till it gets big and snugly fits in the middle of the wheel, then trim it.
Pic 9) it is finished! (mine again is very sloppy but then this is doing from rushing) use it on the snowflake with the blue rods and insert one piece in middle to see for a perfect fit)
Pic 10) ***PEN USERS ONLY***
cut where you put the line with the sharpy!