XT Rotary Hop-Up Chamber Addons

I've found these extra 3 parts really useful in particular in fixing small issues with the popular ZCI plastic hop chamber.

Barrel Clip
The stock clip that comes with the ZCI doesn't fit that well with most inner barrels, causing rotation issues.  This clip helps to locks the barrel in.

Barrel Stablising Ring
The small plastic ring slips over the inner barrel and locks firmly into the gap, centering the barrel and helping to prevent movement.

Over the Barrel Spring
Larger spring that slids over the end of the inner barrel that eliminates the need for the small spring that sits higher up.