This metal trigger has a much better quality than most other Tippmann double triggers. The double trigger kit is a drop-in kit that replaces the single trigger and trigger guard. The kit includes a blade double trigger and a tournament legal trigger guard. To install the double trigger simply remove all gas sources and disassemble the marker to the point of removing the left half of the markers receiver. Remove the single trigger and guard. Then replace with the double trigger and guard. Now replace the receiver half. It's that simple! Works with the Tippmann A5 Basic and A5 Egrip. With the A5 Egrip just remove the pin on the trigger.
The Tippmann Tippmann A5 Metal Blade Trigger & Guard is newer, so it should be commonly available, both new and used.