Negative Airsoft demonstrates how to install the F-Bomb hop rubber into various airsoft barrels and hop-up units. He shows that the process involves lining up the ridge of the rubber with the barrel's groove and carefully sliding it into the hop-up unit. He emphasizes that this component is compatible with a wide range of brands, from standard factory parts to custom setups, and notes that grease should be avoided during installation as it is counterproductive to the rubber's function.