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High grade version (HG) is improved with Hop Up & Full Size Removable Magazine
It was named after the person who owns Systema
SSB Asjustable Hop-Up system
upgrading GBB require necessary skill & technique to dissemble the gun
SHS Metal M4 Hop Up Chamber for M4 AEG Version 2 Gearbox reg_CO High grade version (HG) isSHS Metal M4 Hop Up Chamber for M4 AEG Version 2 Gearbox Metal Construction Design for Upgrade your Original Hop Up Chamber More Durable Suitable for M4 Series Airsoft Electric Gun AEG Version 2 Gearbox
US$ 104.50
US$ 104.50
US$ 104.50
US$ 104.50
US$ 69.95
