Tippmann A-5 Universal Parts Kit foam kit The Empire Mini GS is

The Empire Mini GS is astoundingly efficient when it comes to air and rivals the efficiency of other markers that cost $500 - $800 more

or worse- binding and breaking the ball in the barrel

This refers to the amount of internal volume that each air tank can hold

Reverse thread back to tip interface for easier assembly/disassembly

the Second Generation of Gtek was a simple one

Tippmann A-5 Universal Parts Kit foam kit The Empire Mini GS isIncluded is the following: Front bolt o ring Rear bolt o ring Push pin Ball latch Valve o ring Trigger plate pin Valve spring washer Velocity screw 2 body nuts 2 receiver bolts Feeder ratchet Sear roll pin Marker oil Drive spring