Ruger 10/22 Gatling Gun kit questions?

[lazylinko]

Does anybody have one of these and are they easy to put together? Does it matter if you use a carbine version or rifle version of he ruger 10/22 since the barrel is only like 1" longer. Thanks

http://ab9d.com/webpage/gunstuf/drums4.jpg

 

[Younggun]

With certain kits I have read that it's difficult to keep it timed right. I believe that was a problem with a kit from cabelas, not sure if thats the same one.

 

[TexasRedneck]

This one works okay....