Airlab have shared their installation guide for the Air-Hop:
We’ve made an easy step-by-step guide showing airsofters how to install the Air-Hop, a highly effective accuracy upgrade we make here in the UK. It works with all airsoft guns in a wide range of temperatures.
The Air-Hop is best used with the Air-Nub, which is also very easy to install.
We have an Air-Hop kit which includes an Air-Hop, Air-Nub, installation tool and laser cut sandpaper to help users get started, and is a little cheaper than the individual parts.
(Airlab)
