Replaces the stock air restricted short seal barrel with a non restricted full seal barrel. Adds 15-20 FPS on an otherwise stock sealed plunger system.

Requires no extra hardware.

Print vertically with standard supports on build plate only, 0.1mm layers, brim, and sand/vapor smooth the inside surface of the barrel for ideal performance. 

For ASA/ABS:

Fingernail polish remover can be applied directly with something like a q-tip with decent results if done properly.