Prometheus Straight Chamber Packing for Marui AEG Rifle (Extra Soft)

Prometheus Straight Chamber Packing for Marui AEG Rifle (Extra Soft) If your hop-up adjustment is not having a big effect on the hop-up of your BBs, then it probably means that your hop-up packing is worn down and is not gripping the BB properly before it is fired out It Will Allow More Accurate hop-up Adjustments Suitable For Tokyo Marui AEG Rifle Also Fit For Below 300 fps Rifle Airsoft Guns