
even better cheers mate im moving from a a5 to a geo 2.1 (hoping this on doesnt sell b4 friday lol) so was unsure the stock barrell on that was how can i say mmm gashStick with the shaft4 that comes with it, can not go wrong. If you want the extra bores just get a matching shaft 4 kit that has a 685 and 693 barrel backs. Straight from eclipse themselves. I personally would not waste your money the 689 that comes with it is as good as anything else out there.