The Clear Tac Cap 2 is One of Pro Team Paintball's hoppers for the Tippmann X7 and A5. This hopper replaces the stock hopper on the top of the cyclone feed system. The Tac Cap 2 is similar to other Tac Caps in that it holds a limited amount of paintballs, mimicking the ammunition capacity of a real firearm (in this case, 43 paintballs). The Tac Cap also keeps your paintball gun from having a big paintball hopper on top, which takes away from the "tactical" look.
The clear Tac Cap 2 is different from othe tac caps because the center plastic of the hopper is clear. With this clear window, you can see how many paintballs you have in your hopper.