Maxx Model CNC Aluminum Double O-Ring Air Seal Nozzle (21.25mm)
Each build is different, some builds require longer nozzles, where others may require shorter.
21mm Nozzles & Adjustable Nozzles are also available on the website.
the product is the expected quality, but the shipping and processing speed is by far the best I've had in this industry recently
This nozzle fits perfectly with the MAXX hop unit as expected and helps to mitigate some of those pesky feeding issues they get. If you want to run a MAXX hop up in a standard M4 style platform I would recommend picking one of these up for only 10 bucks.