GSI Expert HOP Wing GBB Hop-Up Rubber color-smoke 5J power output

5J power output

efficient and flexible design

just like a SAS trooper back in the day

Removable padded waist belt

GSI Expert HOP Wing GBB Hop-Up Rubber color-smoke 5J power outputThe GSI Expert HOP Wing Two Way Type Hop Up Rubber is a must have accessory for airsoft gun owners. Made with synthetic rubber, this hop up rubber is designed to withstand all seasons, with little change in friction coefficient due to temperature changes. The two way type design and special construction ensures a consistent loading position for bullets, resulting in improved accuracy and performance. As the best sharpshooter of airsoft guns, this GSI